diff --git a/src/dawn/native/Toggles.cpp b/src/dawn/native/Toggles.cpp
index 8ae66b7..d16cbf5 100644
--- a/src/dawn/native/Toggles.cpp
+++ b/src/dawn/native/Toggles.cpp
@@ -306,9 +306,9 @@
       "integer that is greater than 2^24 or smaller than -2^24). This toggle is also enabled on "
       "Intel GPUs on Metal backend due to a driver issue on Intel Metal driver.",
       "https://crbug.com/dawn/537"}},
-    {Toggle::MetalUseDummyBlitEncoderForWriteTimestamp,
-     {"metal_use_dummy_blit_encoder_for_write_timestamp",
-      "Add dummy blit command to blit encoder when encoding writeTimestamp as workaround on Metal."
+    {Toggle::MetalUseMockBlitEncoderForWriteTimestamp,
+     {"metal_use_mock_blit_encoder_for_write_timestamp",
+      "Add mock blit command to blit encoder when encoding writeTimestamp as workaround on Metal."
       "This toggle is enabled by default on Metal backend where GPU counters cannot be stored to"
       "sampleBufferAttachments on empty blit encoder.",
       "https://crbug.com/dawn/1473"}},
diff --git a/src/dawn/native/Toggles.h b/src/dawn/native/Toggles.h
index 8cfc9d4..36221ee 100644
--- a/src/dawn/native/Toggles.h
+++ b/src/dawn/native/Toggles.h
@@ -79,7 +79,7 @@
     D3D12AllocateExtraMemoryFor2DArrayTexture,
     D3D12UseTempBufferInDepthStencilTextureAndBufferCopyWithNonZeroBufferOffset,
     ApplyClearBigIntegerColorValueWithDraw,
-    MetalUseDummyBlitEncoderForWriteTimestamp,
+    MetalUseMockBlitEncoderForWriteTimestamp,
     VulkanSplitCommandBufferOnDepthStencilComputeSampleAfterRenderPass,
 
     EnumCount,
diff --git a/src/dawn/native/metal/CommandBufferMTL.mm b/src/dawn/native/metal/CommandBufferMTL.mm
index 2bb83ee..91aacbf 100644
--- a/src/dawn/native/metal/CommandBufferMTL.mm
+++ b/src/dawn/native/metal/CommandBufferMTL.mm
@@ -342,8 +342,8 @@
         descriptor.sampleBufferAttachments[0].endOfEncoderSampleIndex = NSUInteger(cmd->queryIndex);
 
         id<MTLBlitCommandEncoder> blit = commandContext->BeginBlit(descriptor);
-        if (device->IsToggleEnabled(Toggle::MetalUseDummyBlitEncoderForWriteTimestamp)) {
-            [blit fillBuffer:device->GetDummyBlitMtlBuffer() range:NSMakeRange(0, 1) value:0];
+        if (device->IsToggleEnabled(Toggle::MetalUseMockBlitEncoderForWriteTimestamp)) {
+            [blit fillBuffer:device->GetMockBlitMtlBuffer() range:NSMakeRange(0, 1) value:0];
         }
         commandContext->EndBlit();
     }
diff --git a/src/dawn/native/metal/DeviceMTL.h b/src/dawn/native/metal/DeviceMTL.h
index f36c228..529abb6 100644
--- a/src/dawn/native/metal/DeviceMTL.h
+++ b/src/dawn/native/metal/DeviceMTL.h
@@ -82,9 +82,9 @@
     bool UseCounterSamplingAtCommandBoundary() const;
     bool UseCounterSamplingAtStageBoundary() const;
 
-    // Get a MTLBuffer that can be used as a dummy in a no-op blit encoder based on filling this
+    // Get a MTLBuffer that can be used as a mock in a no-op blit encoder based on filling this
     // single-byte buffer
-    id<MTLBuffer> GetDummyBlitMtlBuffer();
+    id<MTLBuffer> GetMockBlitMtlBuffer();
 
     void ForceEventualFlushOfCommands() override;
 
@@ -168,7 +168,7 @@
     // Support counter sampling at the begin and end of blit pass, compute pass and render pass's
     // vertex/fragement stage
     bool mCounterSamplingAtStageBoundary;
-    NSPRef<id<MTLBuffer>> mDummyBlitMtlBuffer;
+    NSPRef<id<MTLBuffer>> mMockBlitMtlBuffer;
 };
 
 }  // namespace dawn::native::metal
diff --git a/src/dawn/native/metal/DeviceMTL.mm b/src/dawn/native/metal/DeviceMTL.mm
index 5073e0c..71d7d54 100644
--- a/src/dawn/native/metal/DeviceMTL.mm
+++ b/src/dawn/native/metal/DeviceMTL.mm
@@ -251,11 +251,11 @@
     }
 
     // TODO(dawn:1473): Metal fails to store GPU counters to sampleBufferAttachments on empty
-    // encoders on macOS 11.0+, we need to add dummy blit command to blit encoder when encoding
+    // encoders on macOS 11.0+, we need to add mock blit command to blit encoder when encoding
     // writeTimestamp as workaround by enabling the toggle
-    // "metal_use_dummy_blit_encoder_for_write_timestamp".
+    // "metal_use_mock_blit_encoder_for_write_timestamp".
     if (@available(macos 11.0, iOS 14.0, *)) {
-        SetToggle(Toggle::MetalUseDummyBlitEncoderForWriteTimestamp, true);
+        SetToggle(Toggle::MetalUseMockBlitEncoderForWriteTimestamp, true);
     }
 }
 
@@ -558,7 +558,7 @@
 
     mCommandQueue = nullptr;
     mMtlDevice = nullptr;
-    mDummyBlitMtlBuffer = nullptr;
+    mMockBlitMtlBuffer = nullptr;
 }
 
 uint32_t Device::GetOptimalBytesPerRowAlignment() const {
@@ -581,13 +581,13 @@
     return mCounterSamplingAtStageBoundary;
 }
 
-id<MTLBuffer> Device::GetDummyBlitMtlBuffer() {
-    if (mDummyBlitMtlBuffer == nullptr) {
-        mDummyBlitMtlBuffer.Acquire(
+id<MTLBuffer> Device::GetMockBlitMtlBuffer() {
+    if (mMockBlitMtlBuffer == nullptr) {
+        mMockBlitMtlBuffer.Acquire(
             [GetMTLDevice() newBufferWithLength:1 options:MTLResourceStorageModePrivate]);
     }
 
-    return mDummyBlitMtlBuffer.Get();
+    return mMockBlitMtlBuffer.Get();
 }
 
 }  // namespace dawn::native::metal