WebGPU Backend: Bypass force setting any non device stage toggle

For any explicitly set Instance/Adapter stage toggle,
we do not want to override them when creating the inner device
of the webgpu backend. (e.g. Toggle::ExposeWGSLExperimentalFeatures)

As a result, remove Toggle::AllowUnsafeAPI (which is a Instance stage
toggle) from the kOuterToggles.

Bug: 477593005
Change-Id: I39a2ca033f09322a935205d7e0ac0bce81d1fc15
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/289895
Reviewed-by: Gregg Tavares <gman@chromium.org>
Auto-Submit: Shrek Shao <shrekshao@google.com>
Commit-Queue: Gregg Tavares <gman@chromium.org>

src/dawn/native/webgpu/DeviceWGPU.cpp

diff --git a/src/dawn/native/webgpu/DeviceWGPU.cpp b/src/dawn/native/webgpu/DeviceWGPU.cpp
index 251703b..1525e54 100644
--- a/src/dawn/native/webgpu/DeviceWGPU.cpp
+++ b/src/dawn/native/webgpu/DeviceWGPU.cpp
@@ -71,14 +71,13 @@
 
 namespace {
 
-// Toggles in this list are the only ones enabled in webgpu::Device.
-// Other toggles are passed down to the inner device.
+// Toggles in this list are the only ones with ToggleStage::Device that enabled in webgpu::Device.
+// Other toggles are only passed down to the inner device.
 constexpr Toggle kOuterToggles[] = {
     // Toggles webgpu::Device needs
     Toggle::SkipValidation,
     Toggle::DisableBaseVertex,
     Toggle::DisableBindGroupLayoutEntryArraySize,
-    Toggle::AllowUnsafeAPIs,
     Toggle::EnableImmediateErrorHandling,
 
     // Toggles enabled by default for all backend, do not force set them to avoid warnings.
@@ -102,9 +101,15 @@
     // TogglesState deviceToggles already has them resolved.
 
     // For outer (this webgpu::Device), we want to disable everything else.
-    std::vector<Toggle> togglesToDisable;
     for (size_t i : deviceToggles.GetEnabledToggles()) {
         Toggle t = static_cast<Toggle>(i);
+        const ToggleInfo* info = TogglesInfo::GetToggleInfo(t);
+
+        if (info->stage != ToggleStage::Device) {
+            // Bypass any force settings if not a device stage toggle.
+            continue;
+        }
+
         bool isOuter = false;
         for (Toggle outer : kOuterToggles) {
             if (t == outer) {