Member rename: src/backend/metal
diff --git a/src/backend/metal/BufferMTL.h b/src/backend/metal/BufferMTL.h
index d14a79b..9519c28 100644
--- a/src/backend/metal/BufferMTL.h
+++ b/src/backend/metal/BufferMTL.h
@@ -40,7 +40,7 @@
             void UnmapImpl() override;
             void TransitionUsageImpl(nxt::BufferUsageBit currentUsage, nxt::BufferUsageBit targetUsage) override;
 
-            id<MTLBuffer> mtlBuffer = nil;
+            id<MTLBuffer> mMtlBuffer = nil;
     };
 
     class BufferView : public BufferViewBase {
@@ -57,14 +57,14 @@
             void Tick(Serial finishedSerial);
 
         private:
-            Device* device;
+            Device* mDevice;
 
             struct Request {
                 Ref<Buffer> buffer;
                 uint32_t mapSerial;
                 uint32_t offset;
             };
-            SerialQueue<Request> inflightRequests;
+            SerialQueue<Request> mInflightRequests;
     };
 
 }
diff --git a/src/backend/metal/BufferMTL.mm b/src/backend/metal/BufferMTL.mm
index 3a8c0bc..bcc5ad0 100644
--- a/src/backend/metal/BufferMTL.mm
+++ b/src/backend/metal/BufferMTL.mm
@@ -30,27 +30,27 @@
             storageMode = MTLResourceStorageModePrivate;
         }
 
-        mtlBuffer = [ToBackend(GetDevice())->GetMTLDevice() newBufferWithLength:GetSize()
+        mMtlBuffer = [ToBackend(GetDevice())->GetMTLDevice() newBufferWithLength:GetSize()
             options:storageMode];
     }
 
     Buffer::~Buffer() {
-        [mtlBuffer release];
-        mtlBuffer = nil;
+        [mMtlBuffer release];
+        mMtlBuffer = nil;
     }
 
     id<MTLBuffer> Buffer::GetMTLBuffer() {
-        return mtlBuffer;
+        return mMtlBuffer;
     }
 
     void Buffer::OnMapReadCommandSerialFinished(uint32_t mapSerial, uint32_t offset) {
-        const char* data = reinterpret_cast<const char*>([mtlBuffer contents]);
+        const char* data = reinterpret_cast<const char*>([mMtlBuffer contents]);
         CallMapReadCallback(mapSerial, NXT_BUFFER_MAP_READ_STATUS_SUCCESS, data + offset);
     }
 
     void Buffer::SetSubDataImpl(uint32_t start, uint32_t count, const uint32_t* data) {
         auto* uploader = ToBackend(GetDevice())->GetResourceUploader();
-        uploader->BufferSubData(mtlBuffer, start * sizeof(uint32_t), count * sizeof(uint32_t), data);
+        uploader->BufferSubData(mMtlBuffer, start * sizeof(uint32_t), count * sizeof(uint32_t), data);
     }
 
     void Buffer::MapReadAsyncImpl(uint32_t serial, uint32_t start, uint32_t) {
@@ -70,11 +70,11 @@
     }
 
     MapReadRequestTracker::MapReadRequestTracker(Device* device)
-        : device(device) {
+        : mDevice(device) {
     }
 
     MapReadRequestTracker::~MapReadRequestTracker() {
-        ASSERT(inflightRequests.Empty());
+        ASSERT(mInflightRequests.Empty());
     }
 
     void MapReadRequestTracker::Track(Buffer* buffer, uint32_t mapSerial, uint32_t offset) {
@@ -83,14 +83,14 @@
         request.mapSerial = mapSerial;
         request.offset = offset;
 
-        inflightRequests.Enqueue(std::move(request), device->GetPendingCommandSerial());
+        mInflightRequests.Enqueue(std::move(request), mDevice->GetPendingCommandSerial());
     }
 
     void MapReadRequestTracker::Tick(Serial finishedSerial) {
-        for (auto& request : inflightRequests.IterateUpTo(finishedSerial)) {
+        for (auto& request : mInflightRequests.IterateUpTo(finishedSerial)) {
             request.buffer->OnMapReadCommandSerialFinished(request.mapSerial, request.offset);
         }
-        inflightRequests.ClearUpTo(finishedSerial);
+        mInflightRequests.ClearUpTo(finishedSerial);
     }
 }
 }
diff --git a/src/backend/metal/CommandBufferMTL.h b/src/backend/metal/CommandBufferMTL.h
index 2c390e3..e3e66f6 100644
--- a/src/backend/metal/CommandBufferMTL.h
+++ b/src/backend/metal/CommandBufferMTL.h
@@ -32,8 +32,8 @@
             void FillCommands(id<MTLCommandBuffer> commandBuffer);
 
         private:
-            Device* device;
-            CommandIterator commands;
+            Device* mDevice;
+            CommandIterator mCommands;
     };
 
 }
diff --git a/src/backend/metal/CommandBufferMTL.mm b/src/backend/metal/CommandBufferMTL.mm
index 95a2d9b..9e326d3 100644
--- a/src/backend/metal/CommandBufferMTL.mm
+++ b/src/backend/metal/CommandBufferMTL.mm
@@ -149,12 +149,12 @@
     }
 
     CommandBuffer::CommandBuffer(CommandBufferBuilder* builder)
-        : CommandBufferBase(builder), device(ToBackend(builder->GetDevice())),
-          commands(builder->AcquireCommands()) {
+        : CommandBufferBase(builder), mDevice(ToBackend(builder->GetDevice())),
+          mCommands(builder->AcquireCommands()) {
     }
 
     CommandBuffer::~CommandBuffer() {
-        FreeCommands(&commands);
+        FreeCommands(&mCommands);
     }
 
     void CommandBuffer::FillCommands(id<MTLCommandBuffer> commandBuffer) {
@@ -165,16 +165,16 @@
         uint32_t indexBufferOffset = 0;
 
         CurrentEncoders encoders;
-        encoders.device = device;
+        encoders.device = mDevice;
 
         PerStage<std::array<uint32_t, kMaxPushConstants>> pushConstants;
 
         uint32_t currentSubpass = 0;
-        while (commands.NextCommandId(&type)) {
+        while (mCommands.NextCommandId(&type)) {
             switch (type) {
                 case Command::BeginComputePass:
                     {
-                        commands.NextCommand<BeginComputePassCmd>();
+                        mCommands.NextCommand<BeginComputePassCmd>();
                         encoders.BeginCompute(commandBuffer);
 
                         pushConstants[nxt::ShaderStage::Compute].fill(0);
@@ -186,7 +186,7 @@
 
                 case Command::BeginRenderPass:
                     {
-                        BeginRenderPassCmd* beginRenderPassCmd = commands.NextCommand<BeginRenderPassCmd>();
+                        BeginRenderPassCmd* beginRenderPassCmd = mCommands.NextCommand<BeginRenderPassCmd>();
                         encoders.currentRenderPass = ToBackend(beginRenderPassCmd->renderPass.Get());
                         encoders.currentFramebuffer = ToBackend(beginRenderPassCmd->framebuffer.Get());
                         encoders.EnsureNoBlitEncoder();
@@ -196,7 +196,7 @@
 
                 case Command::BeginRenderSubpass:
                     {
-                        commands.NextCommand<BeginRenderSubpassCmd>();
+                        mCommands.NextCommand<BeginRenderSubpassCmd>();
                         encoders.BeginSubpass(commandBuffer, currentSubpass);
 
                         pushConstants[nxt::ShaderStage::Vertex].fill(0);
@@ -213,7 +213,7 @@
 
                 case Command::CopyBufferToBuffer:
                     {
-                        CopyBufferToBufferCmd* copy = commands.NextCommand<CopyBufferToBufferCmd>();
+                        CopyBufferToBufferCmd* copy = mCommands.NextCommand<CopyBufferToBufferCmd>();
                         auto& src = copy->source;
                         auto& dst = copy->destination;
 
@@ -229,7 +229,7 @@
 
                 case Command::CopyBufferToTexture:
                     {
-                        CopyBufferToTextureCmd* copy = commands.NextCommand<CopyBufferToTextureCmd>();
+                        CopyBufferToTextureCmd* copy = mCommands.NextCommand<CopyBufferToTextureCmd>();
                         auto& src = copy->source;
                         auto& dst = copy->destination;
                         Buffer* buffer = ToBackend(src.buffer.Get());
@@ -261,7 +261,7 @@
 
                 case Command::CopyTextureToBuffer:
                     {
-                        CopyTextureToBufferCmd* copy = commands.NextCommand<CopyTextureToBufferCmd>();
+                        CopyTextureToBufferCmd* copy = mCommands.NextCommand<CopyTextureToBufferCmd>();
                         auto& src = copy->source;
                         auto& dst = copy->destination;
                         Texture* texture = ToBackend(src.texture.Get());
@@ -293,7 +293,7 @@
 
                 case Command::Dispatch:
                     {
-                        DispatchCmd* dispatch = commands.NextCommand<DispatchCmd>();
+                        DispatchCmd* dispatch = mCommands.NextCommand<DispatchCmd>();
                         ASSERT(encoders.compute);
 
                         [encoders.compute dispatchThreadgroups:MTLSizeMake(dispatch->x, dispatch->y, dispatch->z)
@@ -303,7 +303,7 @@
 
                 case Command::DrawArrays:
                     {
-                        DrawArraysCmd* draw = commands.NextCommand<DrawArraysCmd>();
+                        DrawArraysCmd* draw = mCommands.NextCommand<DrawArraysCmd>();
 
                         ASSERT(encoders.render);
                         [encoders.render
@@ -317,7 +317,7 @@
 
                 case Command::DrawElements:
                     {
-                        DrawElementsCmd* draw = commands.NextCommand<DrawElementsCmd>();
+                        DrawElementsCmd* draw = mCommands.NextCommand<DrawElementsCmd>();
 
                         ASSERT(encoders.render);
                         [encoders.render
@@ -334,20 +334,20 @@
 
                 case Command::EndComputePass:
                     {
-                        commands.NextCommand<EndComputePassCmd>();
+                        mCommands.NextCommand<EndComputePassCmd>();
                         encoders.EndCompute();
                     }
                     break;
 
                 case Command::EndRenderPass:
                     {
-                        commands.NextCommand<EndRenderPassCmd>();
+                        mCommands.NextCommand<EndRenderPassCmd>();
                     }
                     break;
 
                 case Command::EndRenderSubpass:
                     {
-                        commands.NextCommand<EndRenderSubpassCmd>();
+                        mCommands.NextCommand<EndRenderSubpassCmd>();
                         encoders.EndSubpass();
                         currentSubpass += 1;
                     }
@@ -355,7 +355,7 @@
 
                 case Command::SetComputePipeline:
                     {
-                        SetComputePipelineCmd* cmd = commands.NextCommand<SetComputePipelineCmd>();
+                        SetComputePipelineCmd* cmd = mCommands.NextCommand<SetComputePipelineCmd>();
                         lastComputePipeline = ToBackend(cmd->pipeline).Get();
 
                         ASSERT(encoders.compute);
@@ -365,7 +365,7 @@
 
                 case Command::SetRenderPipeline:
                     {
-                        SetRenderPipelineCmd* cmd = commands.NextCommand<SetRenderPipelineCmd>();
+                        SetRenderPipelineCmd* cmd = mCommands.NextCommand<SetRenderPipelineCmd>();
                         lastRenderPipeline = ToBackend(cmd->pipeline).Get();
 
                         ASSERT(encoders.render);
@@ -377,8 +377,8 @@
 
                 case Command::SetPushConstants:
                     {
-                        SetPushConstantsCmd* cmd = commands.NextCommand<SetPushConstantsCmd>();
-                        uint32_t* values = commands.NextData<uint32_t>(cmd->count);
+                        SetPushConstantsCmd* cmd = mCommands.NextCommand<SetPushConstantsCmd>();
+                        uint32_t* values = mCommands.NextData<uint32_t>(cmd->count);
 
                         for (auto stage : IterateStages(cmd->stages)) {
                             memcpy(&pushConstants[stage][cmd->offset], values, cmd->count * sizeof(uint32_t));
@@ -412,7 +412,7 @@
 
                 case Command::SetStencilReference:
                     {
-                        SetStencilReferenceCmd* cmd = commands.NextCommand<SetStencilReferenceCmd>();
+                        SetStencilReferenceCmd* cmd = mCommands.NextCommand<SetStencilReferenceCmd>();
 
                         ASSERT(encoders.render);
 
@@ -422,7 +422,7 @@
 
                 case Command::SetBlendColor:
                     {
-                        SetBlendColorCmd* cmd = commands.NextCommand<SetBlendColorCmd>();
+                        SetBlendColorCmd* cmd = mCommands.NextCommand<SetBlendColorCmd>();
 
                         ASSERT(encoders.render);
 
@@ -436,7 +436,7 @@
 
                 case Command::SetBindGroup:
                     {
-                        SetBindGroupCmd* cmd = commands.NextCommand<SetBindGroupCmd>();
+                        SetBindGroupCmd* cmd = mCommands.NextCommand<SetBindGroupCmd>();
                         BindGroup* group = ToBackend(cmd->group.Get());
                         uint32_t groupIndex = cmd->index;
 
@@ -550,7 +550,7 @@
 
                 case Command::SetIndexBuffer:
                     {
-                        SetIndexBufferCmd* cmd = commands.NextCommand<SetIndexBufferCmd>();
+                        SetIndexBufferCmd* cmd = mCommands.NextCommand<SetIndexBufferCmd>();
                         auto b = ToBackend(cmd->buffer.Get());
                         indexBuffer = b->GetMTLBuffer();
                         indexBufferOffset = cmd->offset;
@@ -559,9 +559,9 @@
 
                 case Command::SetVertexBuffers:
                     {
-                        SetVertexBuffersCmd* cmd = commands.NextCommand<SetVertexBuffersCmd>();
-                        auto buffers = commands.NextData<Ref<BufferBase>>(cmd->count);
-                        auto offsets = commands.NextData<uint32_t>(cmd->count);
+                        SetVertexBuffersCmd* cmd = mCommands.NextCommand<SetVertexBuffersCmd>();
+                        auto buffers = mCommands.NextData<Ref<BufferBase>>(cmd->count);
+                        auto offsets = mCommands.NextData<uint32_t>(cmd->count);
 
                         std::array<id<MTLBuffer>, kMaxVertexInputs> mtlBuffers;
                         std::array<NSUInteger, kMaxVertexInputs> mtlOffsets;
@@ -584,7 +584,7 @@
 
                 case Command::TransitionBufferUsage:
                     {
-                        TransitionBufferUsageCmd* cmd = commands.NextCommand<TransitionBufferUsageCmd>();
+                        TransitionBufferUsageCmd* cmd = mCommands.NextCommand<TransitionBufferUsageCmd>();
 
                         cmd->buffer->UpdateUsageInternal(cmd->usage);
                     }
@@ -592,7 +592,7 @@
 
                 case Command::TransitionTextureUsage:
                     {
-                        TransitionTextureUsageCmd* cmd = commands.NextCommand<TransitionTextureUsageCmd>();
+                        TransitionTextureUsageCmd* cmd = mCommands.NextCommand<TransitionTextureUsageCmd>();
 
                         cmd->texture->UpdateUsageInternal(cmd->usage);
                     }
diff --git a/src/backend/metal/ComputePipelineMTL.h b/src/backend/metal/ComputePipelineMTL.h
index fe14f07..5af9542 100644
--- a/src/backend/metal/ComputePipelineMTL.h
+++ b/src/backend/metal/ComputePipelineMTL.h
@@ -31,8 +31,8 @@
             MTLSize GetLocalWorkGroupSize() const;
 
         private:
-            id<MTLComputePipelineState> mtlComputePipelineState = nil;
-            MTLSize localWorkgroupSize;
+            id<MTLComputePipelineState> mMtlComputePipelineState = nil;
+            MTLSize mLocalWorkgroupSize;
     };
 
 }
diff --git a/src/backend/metal/ComputePipelineMTL.mm b/src/backend/metal/ComputePipelineMTL.mm
index da9551a..ed067d8 100644
--- a/src/backend/metal/ComputePipelineMTL.mm
+++ b/src/backend/metal/ComputePipelineMTL.mm
@@ -31,7 +31,7 @@
         auto compilationData = module->GetFunction(entryPoint.c_str(), ToBackend(GetLayout()));
 
         NSError *error = nil;
-        mtlComputePipelineState = [mtlDevice
+        mMtlComputePipelineState = [mtlDevice
             newComputePipelineStateWithFunction:compilationData.function error:&error];
         if (error != nil) {
             NSLog(@" error => %@", error);
@@ -40,19 +40,19 @@
         }
 
         // Copy over the local workgroup size as it is passed to dispatch explicitly in Metal
-        localWorkgroupSize = compilationData.localWorkgroupSize;
+        mLocalWorkgroupSize = compilationData.localWorkgroupSize;
     }
 
     ComputePipeline::~ComputePipeline() {
-        [mtlComputePipelineState release];
+        [mMtlComputePipelineState release];
     }
 
     void ComputePipeline::Encode(id<MTLComputeCommandEncoder> encoder) {
-        [encoder setComputePipelineState:mtlComputePipelineState];
+        [encoder setComputePipelineState:mMtlComputePipelineState];
     }
 
     MTLSize ComputePipeline::GetLocalWorkGroupSize() const {
-        return localWorkgroupSize;
+        return mLocalWorkgroupSize;
     }
 
 }
diff --git a/src/backend/metal/DepthStencilStateMTL.h b/src/backend/metal/DepthStencilStateMTL.h
index e8f3df7..2208df0 100644
--- a/src/backend/metal/DepthStencilStateMTL.h
+++ b/src/backend/metal/DepthStencilStateMTL.h
@@ -32,7 +32,7 @@
             id<MTLDepthStencilState> GetMTLDepthStencilState();
 
         private:
-            id<MTLDepthStencilState> mtlDepthStencilState = nil;
+            id<MTLDepthStencilState> mMtlDepthStencilState = nil;
     };
 
 }
diff --git a/src/backend/metal/DepthStencilStateMTL.mm b/src/backend/metal/DepthStencilStateMTL.mm
index 7f35bd7..8b456e6 100644
--- a/src/backend/metal/DepthStencilStateMTL.mm
+++ b/src/backend/metal/DepthStencilStateMTL.mm
@@ -97,17 +97,17 @@
         }
 
         auto mtlDevice = ToBackend(builder->GetDevice())->GetMTLDevice();
-        mtlDepthStencilState = [mtlDevice newDepthStencilStateWithDescriptor:mtlDepthStencilDescriptor];
+        mMtlDepthStencilState = [mtlDevice newDepthStencilStateWithDescriptor:mtlDepthStencilDescriptor];
         [mtlDepthStencilDescriptor release];
     }
 
     DepthStencilState::~DepthStencilState() {
-        [mtlDepthStencilState release];
-        mtlDepthStencilState = nil;
+        [mMtlDepthStencilState release];
+        mMtlDepthStencilState = nil;
     }
 
     id<MTLDepthStencilState> DepthStencilState::GetMTLDepthStencilState() {
-        return mtlDepthStencilState;
+        return mMtlDepthStencilState;
     }
 
 }
diff --git a/src/backend/metal/InputStateMTL.h b/src/backend/metal/InputStateMTL.h
index 771bf2b..c9dd096 100644
--- a/src/backend/metal/InputStateMTL.h
+++ b/src/backend/metal/InputStateMTL.h
@@ -30,7 +30,7 @@
             MTLVertexDescriptor* GetMTLVertexDescriptor();
 
         private:
-            MTLVertexDescriptor* mtlVertexDescriptor = nil;
+            MTLVertexDescriptor* mMtlVertexDescriptor = nil;
     };
 
 }
diff --git a/src/backend/metal/InputStateMTL.mm b/src/backend/metal/InputStateMTL.mm
index d72f1c6..9bbfa43 100644
--- a/src/backend/metal/InputStateMTL.mm
+++ b/src/backend/metal/InputStateMTL.mm
@@ -46,7 +46,7 @@
 
     InputState::InputState(InputStateBuilder* builder)
         : InputStateBase(builder) {
-        mtlVertexDescriptor = [MTLVertexDescriptor new];
+        mMtlVertexDescriptor = [MTLVertexDescriptor new];
 
         const auto& attributesSetMask = GetAttributesSetMask();
         for (uint32_t i = 0; i < attributesSetMask.size(); ++i) {
@@ -59,7 +59,7 @@
             attribDesc.format = VertexFormatType(info.format);
             attribDesc.offset = info.offset;
             attribDesc.bufferIndex = kMaxBindingsPerGroup + info.bindingSlot;
-            mtlVertexDescriptor.attributes[i] = attribDesc;
+            mMtlVertexDescriptor.attributes[i] = attribDesc;
             [attribDesc release];
         }
 
@@ -81,18 +81,18 @@
                 layoutDesc.stride = info.stride;
             }
             // TODO(cwallez@chromium.org): make the offset depend on the pipeline layout
-            mtlVertexDescriptor.layouts[kMaxBindingsPerGroup + i] = layoutDesc;
+            mMtlVertexDescriptor.layouts[kMaxBindingsPerGroup + i] = layoutDesc;
             [layoutDesc release];
         }
     }
 
     InputState::~InputState() {
-        [mtlVertexDescriptor release];
-        mtlVertexDescriptor = nil;
+        [mMtlVertexDescriptor release];
+        mMtlVertexDescriptor = nil;
     }
 
     MTLVertexDescriptor* InputState::GetMTLVertexDescriptor() {
-        return mtlVertexDescriptor;
+        return mMtlVertexDescriptor;
     }
 
 }
diff --git a/src/backend/metal/MetalBackend.h b/src/backend/metal/MetalBackend.h
index d3e3048..0f58bf4 100644
--- a/src/backend/metal/MetalBackend.h
+++ b/src/backend/metal/MetalBackend.h
@@ -124,14 +124,14 @@
         private:
             void OnCompletedHandler();
 
-            id<MTLDevice> mtlDevice = nil;
-            id<MTLCommandQueue> commandQueue = nil;
-            MapReadRequestTracker* mapReadTracker;
-            ResourceUploader* resourceUploader;
+            id<MTLDevice> mMtlDevice = nil;
+            id<MTLCommandQueue> mCommandQueue = nil;
+            MapReadRequestTracker* mMapReadTracker;
+            ResourceUploader* mResourceUploader;
 
-            Serial finishedCommandSerial = 0;
-            Serial pendingCommandSerial = 1;
-            id<MTLCommandBuffer> pendingCommands = nil;
+            Serial mFinishedCommandSerial = 0;
+            Serial mPendingCommandSerial = 1;
+            id<MTLCommandBuffer> mPendingCommands = nil;
     };
 
     class BindGroup : public BindGroupBase {
@@ -161,7 +161,7 @@
             void Submit(uint32_t numCommands, CommandBuffer* const * commands);
 
         private:
-            id<MTLCommandQueue> commandQueue = nil;
+            id<MTLCommandQueue> mCommandQueue = nil;
     };
 
     class RenderPass : public RenderPassBase {
diff --git a/src/backend/metal/MetalBackend.mm b/src/backend/metal/MetalBackend.mm
index d2aaa00..6053b96 100644
--- a/src/backend/metal/MetalBackend.mm
+++ b/src/backend/metal/MetalBackend.mm
@@ -45,10 +45,10 @@
     // Device
 
     Device::Device(id<MTLDevice> mtlDevice)
-        : mtlDevice(mtlDevice), mapReadTracker(new MapReadRequestTracker(this)),
-            resourceUploader(new ResourceUploader(this)) {
-        [mtlDevice retain];
-        commandQueue = [mtlDevice newCommandQueue];
+        : mMtlDevice(mtlDevice), mMapReadTracker(new MapReadRequestTracker(this)),
+            mResourceUploader(new ResourceUploader(this)) {
+        [mMtlDevice retain];
+        mCommandQueue = [mMtlDevice newCommandQueue];
     }
 
     Device::~Device() {
@@ -58,25 +58,25 @@
         // SubmitPendingCommandBuffer then wait for it to be passed. Instead we submit and
         // wait for the serial before the next pendingCommandSerial.
         SubmitPendingCommandBuffer();
-        while (finishedCommandSerial != pendingCommandSerial - 1) {
+        while (mFinishedCommandSerial != mPendingCommandSerial - 1) {
             usleep(100);
         }
         Tick();
 
-        [pendingCommands release];
-        pendingCommands = nil;
+        [mPendingCommands release];
+        mPendingCommands = nil;
 
-        delete mapReadTracker;
-        mapReadTracker = nullptr;
+        delete mMapReadTracker;
+        mMapReadTracker = nullptr;
 
-        delete resourceUploader;
-        resourceUploader = nullptr;
+        delete mResourceUploader;
+        mResourceUploader = nullptr;
 
-        [mtlDevice release];
-        mtlDevice = nil;
+        [mMtlDevice release];
+        mMtlDevice = nil;
 
-        [commandQueue release];
-        commandQueue = nil;
+        [mCommandQueue release];
+        mCommandQueue = nil;
     }
 
     BindGroupBase* Device::CreateBindGroup(BindGroupBuilder* builder) {
@@ -138,8 +138,8 @@
     }
 
     void Device::TickImpl() {
-        resourceUploader->Tick(finishedCommandSerial);
-        mapReadTracker->Tick(finishedCommandSerial);
+        mResourceUploader->Tick(mFinishedCommandSerial);
+        mMapReadTracker->Tick(mFinishedCommandSerial);
 
         // Code above might have added GPU work, submit it. This also makes sure
         // that even when no GPU work is happening, the serial number keeps incrementing.
@@ -147,34 +147,34 @@
     }
 
     id<MTLDevice> Device::GetMTLDevice() {
-        return mtlDevice;
+        return mMtlDevice;
     }
 
     id<MTLCommandBuffer> Device::GetPendingCommandBuffer() {
-        if (pendingCommands == nil) {
-            pendingCommands = [commandQueue commandBuffer];
-            [pendingCommands retain];
+        if (mPendingCommands == nil) {
+            mPendingCommands = [mCommandQueue commandBuffer];
+            [mPendingCommands retain];
         }
-        return pendingCommands;
+        return mPendingCommands;
     }
 
     void Device::SubmitPendingCommandBuffer() {
-        if (pendingCommands == nil) {
+        if (mPendingCommands == nil) {
             return;
         }
 
         // Ok, ObjC blocks are weird. My understanding is that local variables are captured by value
         // so this-> works as expected. However it is unclear how members are captured, (are they
         // captured using this-> or by value?) so we make a copy of the pendingCommandSerial on the stack.
-        Serial pendingSerial = pendingCommandSerial;
-        [pendingCommands addCompletedHandler:^(id<MTLCommandBuffer>) {
-            this->finishedCommandSerial = pendingSerial;
+        Serial pendingSerial = mPendingCommandSerial;
+        [mPendingCommands addCompletedHandler:^(id<MTLCommandBuffer>) {
+            this->mFinishedCommandSerial = pendingSerial;
         }];
 
-        [pendingCommands commit];
-        [pendingCommands release];
-        pendingCommands = nil;
-        pendingCommandSerial ++;
+        [mPendingCommands commit];
+        [mPendingCommands release];
+        mPendingCommands = nil;
+        mPendingCommandSerial ++;
     }
 
     uint64_t Device::GetPendingCommandSerial() {
@@ -183,15 +183,15 @@
         // enqueued on the next Tick() and eventually increments the serial. Otherwise if no GPU work
         // happens we could be waiting for this serial forever.
         GetPendingCommandBuffer();
-        return pendingCommandSerial;
+        return mPendingCommandSerial;
     }
 
     MapReadRequestTracker* Device::GetMapReadTracker() const {
-        return mapReadTracker;
+        return mMapReadTracker;
     }
 
     ResourceUploader* Device::GetResourceUploader() const {
-        return resourceUploader;
+        return mResourceUploader;
     }
 
     // Bind Group
@@ -220,16 +220,16 @@
     Queue::Queue(QueueBuilder* builder)
         : QueueBase(builder) {
         Device* device = ToBackend(builder->GetDevice());
-        commandQueue = [device->GetMTLDevice() newCommandQueue];
+        mCommandQueue = [device->GetMTLDevice() newCommandQueue];
     }
 
     Queue::~Queue() {
-        [commandQueue release];
-        commandQueue = nil;
+        [mCommandQueue release];
+        mCommandQueue = nil;
     }
 
     id<MTLCommandQueue> Queue::GetMTLCommandQueue() {
-        return commandQueue;
+        return mCommandQueue;
     }
 
     void Queue::Submit(uint32_t numCommands, CommandBuffer* const * commands) {
diff --git a/src/backend/metal/PipelineLayoutMTL.h b/src/backend/metal/PipelineLayoutMTL.h
index 34b4fda..4598e2a 100644
--- a/src/backend/metal/PipelineLayoutMTL.h
+++ b/src/backend/metal/PipelineLayoutMTL.h
@@ -36,7 +36,7 @@
             const BindingIndexInfo& GetBindingIndexInfo(nxt::ShaderStage stage) const;
 
         private:
-            PerStage<BindingIndexInfo> indexInfo;
+            PerStage<BindingIndexInfo> mIndexInfo;
     };
 
 }
diff --git a/src/backend/metal/PipelineLayoutMTL.mm b/src/backend/metal/PipelineLayoutMTL.mm
index 3714a3a..749e3c9 100644
--- a/src/backend/metal/PipelineLayoutMTL.mm
+++ b/src/backend/metal/PipelineLayoutMTL.mm
@@ -41,15 +41,15 @@
                     switch (groupInfo.types[binding]) {
                         case nxt::BindingType::UniformBuffer:
                         case nxt::BindingType::StorageBuffer:
-                            indexInfo[stage][group][binding] = bufferIndex;
+                            mIndexInfo[stage][group][binding] = bufferIndex;
                             bufferIndex++;
                             break;
                         case nxt::BindingType::Sampler:
-                            indexInfo[stage][group][binding] = samplerIndex;
+                            mIndexInfo[stage][group][binding] = samplerIndex;
                             samplerIndex++;
                             break;
                         case nxt::BindingType::SampledTexture:
-                            indexInfo[stage][group][binding] = textureIndex;
+                            mIndexInfo[stage][group][binding] = textureIndex;
                             textureIndex++;
                             break;
                     }
@@ -59,7 +59,7 @@
     }
 
     const PipelineLayout::BindingIndexInfo& PipelineLayout::GetBindingIndexInfo(nxt::ShaderStage stage) const {
-        return indexInfo[stage];
+        return mIndexInfo[stage];
     }
 
 }
diff --git a/src/backend/metal/RenderPipelineMTL.h b/src/backend/metal/RenderPipelineMTL.h
index c057dad..6233890 100644
--- a/src/backend/metal/RenderPipelineMTL.h
+++ b/src/backend/metal/RenderPipelineMTL.h
@@ -33,9 +33,9 @@
             void Encode(id<MTLRenderCommandEncoder> encoder);
 
         private:
-            MTLIndexType mtlIndexType;
-            MTLPrimitiveType mtlPrimitiveTopology;
-            id<MTLRenderPipelineState> mtlRenderPipelineState = nil;
+            MTLIndexType mMtlIndexType;
+            MTLPrimitiveType mMtlPrimitiveTopology;
+            id<MTLRenderPipelineState> mMtlRenderPipelineState = nil;
     };
 
 }
diff --git a/src/backend/metal/RenderPipelineMTL.mm b/src/backend/metal/RenderPipelineMTL.mm
index a8c9351..289fd31 100644
--- a/src/backend/metal/RenderPipelineMTL.mm
+++ b/src/backend/metal/RenderPipelineMTL.mm
@@ -66,8 +66,8 @@
 
     RenderPipeline::RenderPipeline(RenderPipelineBuilder* builder)
         : RenderPipelineBase(builder),
-          mtlIndexType(MTLIndexFormat(GetIndexFormat())),
-          mtlPrimitiveTopology(MTLPrimitiveTopology(GetPrimitiveTopology())) {
+          mMtlIndexType(MTLIndexFormat(GetIndexFormat())),
+          mMtlPrimitiveTopology(MTLPrimitiveTopology(GetPrimitiveTopology())) {
 
         auto mtlDevice = ToBackend(builder->GetDevice())->GetMTLDevice();
 
@@ -116,7 +116,7 @@
         // TODO(kainino@chromium.org): push constants, textures, samplers
 
         NSError *error = nil;
-        mtlRenderPipelineState = [mtlDevice
+        mMtlRenderPipelineState = [mtlDevice
             newRenderPipelineStateWithDescriptor:descriptor error:&error];
         if (error != nil) {
             NSLog(@" error => %@", error);
@@ -129,19 +129,19 @@
     }
 
     RenderPipeline::~RenderPipeline() {
-        [mtlRenderPipelineState release];
+        [mMtlRenderPipelineState release];
     }
 
     MTLIndexType RenderPipeline::GetMTLIndexType() const {
-        return mtlIndexType;
+        return mMtlIndexType;
     }
 
     MTLPrimitiveType RenderPipeline::GetMTLPrimitiveTopology() const {
-        return mtlPrimitiveTopology;
+        return mMtlPrimitiveTopology;
     }
 
     void RenderPipeline::Encode(id<MTLRenderCommandEncoder> encoder) {
-        [encoder setRenderPipelineState:mtlRenderPipelineState];
+        [encoder setRenderPipelineState:mMtlRenderPipelineState];
     }
 
 }
diff --git a/src/backend/metal/ResourceUploader.h b/src/backend/metal/ResourceUploader.h
index c95f74f..e87526d 100644
--- a/src/backend/metal/ResourceUploader.h
+++ b/src/backend/metal/ResourceUploader.h
@@ -34,8 +34,8 @@
             void Tick(Serial finishedSerial);
 
         private:
-            Device* device;
-            SerialQueue<id<MTLBuffer>> inflightUploadBuffers;
+            Device* mDevice;
+            SerialQueue<id<MTLBuffer>> mInflightUploadBuffers;
     };
 
 
diff --git a/src/backend/metal/ResourceUploader.mm b/src/backend/metal/ResourceUploader.mm
index 058bfc6..d0a58f3 100644
--- a/src/backend/metal/ResourceUploader.mm
+++ b/src/backend/metal/ResourceUploader.mm
@@ -20,20 +20,20 @@
 namespace metal {
 
     ResourceUploader::ResourceUploader(Device* device)
-        : device(device) {
+        : mDevice(device) {
     }
 
     ResourceUploader::~ResourceUploader() {
-        ASSERT(inflightUploadBuffers.Empty());
+        ASSERT(mInflightUploadBuffers.Empty());
     }
 
     void ResourceUploader::BufferSubData(id<MTLBuffer> buffer, uint32_t start, uint32_t size, const void* data) {
         // TODO(cwallez@chromium.org) use a ringbuffer instead of creating a small buffer for each update
-        id<MTLBuffer> uploadBuffer = [device->GetMTLDevice() newBufferWithLength:size
+        id<MTLBuffer> uploadBuffer = [mDevice->GetMTLDevice() newBufferWithLength:size
             options:MTLResourceStorageModeShared];
         memcpy([uploadBuffer contents], data, size);
 
-        id<MTLCommandBuffer> commandBuffer = device->GetPendingCommandBuffer();
+        id<MTLCommandBuffer> commandBuffer = mDevice->GetPendingCommandBuffer();
         id<MTLBlitCommandEncoder> encoder = [commandBuffer blitCommandEncoder];
         [encoder copyFromBuffer:uploadBuffer
                 sourceOffset:0
@@ -42,14 +42,14 @@
                 size:size];
         [encoder endEncoding];
 
-        inflightUploadBuffers.Enqueue(uploadBuffer, device->GetPendingCommandSerial());
+        mInflightUploadBuffers.Enqueue(uploadBuffer, mDevice->GetPendingCommandSerial());
     }
 
     void ResourceUploader::Tick(Serial finishedSerial) {
-        for (id<MTLBuffer> buffer : inflightUploadBuffers.IterateUpTo(finishedSerial)) {
+        for (id<MTLBuffer> buffer : mInflightUploadBuffers.IterateUpTo(finishedSerial)) {
             [buffer release];
         }
-        inflightUploadBuffers.ClearUpTo(finishedSerial);
+        mInflightUploadBuffers.ClearUpTo(finishedSerial);
     }
 
 }
diff --git a/src/backend/metal/SamplerMTL.h b/src/backend/metal/SamplerMTL.h
index 84b485d..23a64f5 100644
--- a/src/backend/metal/SamplerMTL.h
+++ b/src/backend/metal/SamplerMTL.h
@@ -30,7 +30,7 @@
             id<MTLSamplerState> GetMTLSamplerState();
 
         private:
-            id<MTLSamplerState> mtlSamplerState = nil;
+            id<MTLSamplerState> mMtlSamplerState = nil;
     };
 
 }
diff --git a/src/backend/metal/SamplerMTL.mm b/src/backend/metal/SamplerMTL.mm
index a3ef42c..8408343 100644
--- a/src/backend/metal/SamplerMTL.mm
+++ b/src/backend/metal/SamplerMTL.mm
@@ -49,15 +49,15 @@
 
         // TODO(kainino@chromium.org): wrap modes
         auto mtlDevice = ToBackend(builder->GetDevice())->GetMTLDevice();
-        mtlSamplerState = [mtlDevice newSamplerStateWithDescriptor:desc];
+        mMtlSamplerState = [mtlDevice newSamplerStateWithDescriptor:desc];
     }
 
     Sampler::~Sampler() {
-        [mtlSamplerState release];
+        [mMtlSamplerState release];
     }
 
     id<MTLSamplerState> Sampler::GetMTLSamplerState() {
-        return mtlSamplerState;
+        return mMtlSamplerState;
     }
 
 }
diff --git a/src/backend/metal/ShaderModuleMTL.h b/src/backend/metal/ShaderModuleMTL.h
index f74b78a..984c9c5 100644
--- a/src/backend/metal/ShaderModuleMTL.h
+++ b/src/backend/metal/ShaderModuleMTL.h
@@ -42,7 +42,7 @@
             // Calling compile on CompilerMSL somehow changes internal state that makes subsequent
             // compiles return invalid MSL. We keep the spirv around and recreate the compiler everytime
             // we need to use it.
-            std::vector<uint32_t> spirv;
+            std::vector<uint32_t> mSpirv;
     };
 
 }
diff --git a/src/backend/metal/ShaderModuleMTL.mm b/src/backend/metal/ShaderModuleMTL.mm
index a3e6d83..51645f7 100644
--- a/src/backend/metal/ShaderModuleMTL.mm
+++ b/src/backend/metal/ShaderModuleMTL.mm
@@ -42,14 +42,14 @@
     }
 
     ShaderModule::ShaderModule(ShaderModuleBuilder* builder)
-        : ShaderModuleBase(builder), spirv(builder->AcquireSpirv()) {
-        spirv_cross::CompilerMSL compiler(spirv);
+        : ShaderModuleBase(builder), mSpirv(builder->AcquireSpirv()) {
+        spirv_cross::CompilerMSL compiler(mSpirv);
         ExtractSpirvInfo(compiler);
     }
 
     ShaderModule::MetalFunctionData ShaderModule::GetFunction(const char* functionName,
                                                               const PipelineLayout* layout) const {
-        spirv_cross::CompilerMSL compiler(spirv);
+        spirv_cross::CompilerMSL compiler(mSpirv);
 
         // By default SPIRV-Cross will give MSL resources indices in increasing order.
         // To make the MSL indices match the indices chosen in the PipelineLayout, we build
diff --git a/src/backend/metal/TextureMTL.h b/src/backend/metal/TextureMTL.h
index 155f750..04822b2 100644
--- a/src/backend/metal/TextureMTL.h
+++ b/src/backend/metal/TextureMTL.h
@@ -35,7 +35,7 @@
             void TransitionUsageImpl(nxt::TextureUsageBit currentUsage, nxt::TextureUsageBit targetUsage) override;
 
         private:
-            id<MTLTexture> mtlTexture = nil;
+            id<MTLTexture> mMtlTexture = nil;
     };
 
     class TextureView : public TextureViewBase {
diff --git a/src/backend/metal/TextureMTL.mm b/src/backend/metal/TextureMTL.mm
index f71cc5c..00755de 100644
--- a/src/backend/metal/TextureMTL.mm
+++ b/src/backend/metal/TextureMTL.mm
@@ -74,20 +74,20 @@
         desc.storageMode = MTLStorageModePrivate;
 
         auto mtlDevice = ToBackend(builder->GetDevice())->GetMTLDevice();
-        mtlTexture = [mtlDevice newTextureWithDescriptor:desc];
+        mMtlTexture = [mtlDevice newTextureWithDescriptor:desc];
     }
 
     Texture::Texture(TextureBuilder* builder, id<MTLTexture> mtlTexture)
-        : TextureBase(builder), mtlTexture(mtlTexture) {
-        [mtlTexture retain];
+        : TextureBase(builder), mMtlTexture(mtlTexture) {
+        [mMtlTexture retain];
     }
 
     Texture::~Texture() {
-        [mtlTexture release];
+        [mMtlTexture release];
     }
 
     id<MTLTexture> Texture::GetMTLTexture() {
-        return mtlTexture;
+        return mMtlTexture;
     }
 
     void Texture::TransitionUsageImpl(nxt::TextureUsageBit, nxt::TextureUsageBit) {