Fix dawn tests not using CLI adapter toggles

For example, `--disable-toggles=use_dxc` was being ignored. Use the
ParamTogglesHelper to collect all adapter toggles, as we do for device
toggles.

Note that we were previously needlessly passing in force
enabled/disabled *device* toggles in the adapter options. This no longer
happens now as ParamTogglesHelper filters the toggles by stage.

Change-Id: I439129e8e7a33f50cdefca8b810efba0c1c34fa1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/206259
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

src/dawn/tests/DawnTest.cpp

diff --git a/src/dawn/tests/DawnTest.cpp b/src/dawn/tests/DawnTest.cpp
index 7848458..2a7e9a6 100644
--- a/src/dawn/tests/DawnTest.cpp
+++ b/src/dawn/tests/DawnTest.cpp
@@ -727,16 +727,10 @@
         DAWN_ASSERT(callbackInfo.mode == WGPUCallbackMode_AllowSpontaneous);
 
         // Use the required toggles of test case when creating adapter.
-        const auto& enabledToggles = gCurrentTest->mParam.forceEnabledWorkarounds;
-        const auto& disabledToggles = gCurrentTest->mParam.forceDisabledWorkarounds;
-        wgpu::DawnTogglesDescriptor adapterToggles;
-        adapterToggles.enabledToggleCount = enabledToggles.size();
-        adapterToggles.enabledToggles = enabledToggles.data();
-        adapterToggles.disabledToggleCount = disabledToggles.size();
-        adapterToggles.disabledToggles = disabledToggles.data();
+        ParamTogglesHelper deviceTogglesHelper(gCurrentTest->mParam, native::ToggleStage::Adapter);
 
         wgpu::RequestAdapterOptions adapterOptions;
-        adapterOptions.nextInChain = &adapterToggles;
+        adapterOptions.nextInChain = &deviceTogglesHelper.togglesDesc;
         adapterOptions.backendType = gCurrentTest->mParam.adapterProperties.backendType;
         adapterOptions.compatibilityMode = gCurrentTest->mParam.adapterProperties.compatibilityMode;