Revert "Fix SwANGLE DeviceType and OpenGL ES DeviceType checking."

This reverts commit 9bb02dbbc6.

Reason for revert: breaking the Dawn roll into Chrome: https://ci.chromium.org/ui/p/chromium/builders/try/dawn-linux-x64-deps-rel/12478/overview

Original change's description:
> Fix SwANGLE DeviceType and OpenGL ES DeviceType checking.
>
> OpenGL ES drivers (like OpenGL drivers) have DeviceType::Unknown.
> We want to allow testing of unknown native GLES drivers,
> as we do for GL drivers, so add them to the conditional.
>
> NOTE: this change will enable the OpenGLES backend to run tests on
> the CQ and waterfall bots.
>
> Mark SwANGLE as a "CPU" adapter type, rather than unknown, since we
> don't want to test it by default.
>
> Bug:dawn:580 dawn:447 dawn:661
> Change-Id: I21577cb9d1fdec53704433a5db1fe2603bdbeb6d
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/39920
> Reviewed-by: Austin Eng <enga@chromium.org>
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Commit-Queue: Stephen White <senorblanco@chromium.org>

TBR=cwallez@chromium.org,senorblanco@chromium.org,enga@chromium.org

Change-Id: I7e454f1da23faa4cfa0cfe737c0d318ecca2bcd8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: dawn:580 dawn:447 dawn:661
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/40240
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Stephen White <senorblanco@chromium.org>

src/dawn_native/opengl/BackendGL.cpp

@@ -183,10 +183,6 @@ namespace dawn_native { namespace opengl {
             mDriverDescription = std::string("OpenGL version ") +
                                  reinterpret_cast<const char*>(mFunctions.GetString(GL_VERSION));
 
-            if (mPCIInfo.name.find("SwiftShader") != std::string::npos) {
-                mAdapterType = wgpu::AdapterType::CPU;
-            }
-
             InitializeSupportedExtensions();
 
             return {};

src/tests/DawnTest.cpp

@@ -439,8 +439,7 @@ void DawnTestEnvironment::SelectPreferredAdapterProperties(const dawn_native::In
                 // If we ever have Swiftshader GL (unlikely), we could set the DeviceType properly.
                 (preferredDeviceType != dawn_native::DeviceType::CPU &&
                  adapter.GetDeviceType() == dawn_native::DeviceType::Unknown &&
-                 (properties.backendType == wgpu::BackendType::OpenGL ||
+                 properties.backendType == wgpu::BackendType::OpenGL) ||
-                  properties.backendType == wgpu::BackendType::OpenGLES)) ||
                 // Always select the Null backend. There are few tests on this backend, and they run
                 // quickly. This is temporary as to not lose coverage. We can group it with
                 // Swiftshader as a CPU adapter when we have Swiftshader tests.

src/tests/end2end/BufferZeroInitTests.cpp

@@ -980,9 +980,6 @@ TEST_P(BufferZeroInitTest, Copy2DArrayTextureToBuffer) {
 // Test that the buffer will be lazy initialized correctly when its first use is to be bound as a
 // uniform buffer.
 TEST_P(BufferZeroInitTest, BoundAsUniformBuffer) {
-    // TODO(crbug.com/dawn/661): Diagnose and fix this backend validation failure on GLES.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     const char* computeShader = R"(
         #version 450
         layout(set = 0, binding = 0, std140) uniform UBO {
@@ -1019,9 +1016,6 @@ TEST_P(BufferZeroInitTest, BoundAsUniformBuffer) {
 // Test that the buffer will be lazy initialized correctly when its first use is to be bound as a
 // read-only storage buffer.
 TEST_P(BufferZeroInitTest, BoundAsReadonlyStorageBuffer) {
-    // TODO(crbug.com/dawn/661): Diagnose and fix this backend validation failure on GLES.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     const char* computeShader = R"(
         #version 450
         layout(set = 0, binding = 0, std140) readonly buffer SSBO {
@@ -1058,9 +1052,6 @@ TEST_P(BufferZeroInitTest, BoundAsReadonlyStorageBuffer) {
 // Test that the buffer will be lazy initialized correctly when its first use is to be bound as a
 // storage buffer.
 TEST_P(BufferZeroInitTest, BoundAsStorageBuffer) {
-    // TODO(crbug.com/dawn/661): Diagnose and fix this backend validation failure on GLES.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     // TODO(crbug.com/tint/375): Enable once barriers are implemented
     DAWN_SKIP_TEST_IF(HasToggleEnabled("use_tint_generator"));
     const char* computeShader = R"(
@@ -1171,9 +1162,6 @@ TEST_P(BufferZeroInitTest, IndirectBufferForDrawIndexedIndirect) {
 // Test the buffer will be lazily initialized correctly when its first use is an indirect buffer for
 // DispatchIndirect.
 TEST_P(BufferZeroInitTest, IndirectBufferForDispatchIndirect) {
-    // TODO(crbug.com/dawn/661): Diagnose and fix this backend validation failure on GLES.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     // Bind the whole buffer as an indirect buffer.
     {
         constexpr uint64_t kOffset = 0u;

src/tests/end2end/GpuMemorySynchronizationTests.cpp

@@ -230,10 +230,6 @@ TEST_P(GpuMemorySyncTests, ComputePassToRenderPass) {
 // Use an image as both sampled and readonly storage in a compute pass. This is a regression test
 // for the Vulkan backend choosing different layouts for Sampled and ReadOnlyStorage.
 TEST_P(GpuMemorySyncTests, SampledAndROStorageTextureInComputePass) {
-    // TODO(crbug.com/dawn/646): diagnose and fix this OpenGL ES backend validation failure.
-    // "GL_INVALID_OPERATION error generated. Image variable update is not allowed."
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     // Create a storage + sampled texture of one texel initialized to 1
     wgpu::TextureDescriptor texDesc;
     texDesc.format = wgpu::TextureFormat::R32Uint;

src/tests/end2end/StorageTextureTests.cpp

@@ -691,9 +691,6 @@ TEST_P(StorageTextureTests, BindGroupLayoutWithStorageTextureBindingType) {
 
 // Test that read-only storage textures are supported in compute shader.
 TEST_P(StorageTextureTests, ReadonlyStorageTextureInComputeShader) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     for (wgpu::TextureFormat format : utils::kAllTextureFormats) {
         if (!utils::TextureFormatSupportsStorageTexture(format)) {
             continue;
@@ -732,9 +729,6 @@ TEST_P(StorageTextureTests, ReadonlyStorageTextureInComputeShader) {
 
 // Test that read-only storage textures are supported in vertex shader.
 TEST_P(StorageTextureTests, ReadonlyStorageTextureInVertexShader) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     for (wgpu::TextureFormat format : utils::kAllTextureFormats) {
         if (!utils::TextureFormatSupportsStorageTexture(format)) {
             continue;
@@ -917,9 +911,6 @@ TEST_P(StorageTextureTests, WriteonlyStorageTextureInFragmentShader) {
 
 // Verify 2D array read-only storage texture works correctly.
 TEST_P(StorageTextureTests, Readonly2DArrayStorageTexture) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     constexpr uint32_t kArrayLayerCount = 3u;
 
     constexpr wgpu::TextureFormat kTextureFormat = wgpu::TextureFormat::R32Uint;
@@ -953,9 +944,6 @@ TEST_P(StorageTextureTests, Readonly2DArrayStorageTexture) {
 
 // Verify 2D array write-only storage texture works correctly.
 TEST_P(StorageTextureTests, Writeonly2DArrayStorageTexture) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     constexpr uint32_t kArrayLayerCount = 3u;
 
     constexpr wgpu::TextureFormat kTextureFormat = wgpu::TextureFormat::R32Uint;
@@ -1178,9 +1166,6 @@ fn doTest() -> bool {
 // Verify that the texture is correctly cleared to 0 before its first usage as a read-only storage
 // texture in a render pass.
 TEST_P(StorageTextureZeroInitTests, ReadonlyStorageTextureClearsToZeroInRenderPass) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     wgpu::Texture readonlyStorageTexture =
         CreateTexture(wgpu::TextureFormat::R32Uint, wgpu::TextureUsage::Storage);
 
@@ -1205,9 +1190,6 @@ TEST_P(StorageTextureZeroInitTests, ReadonlyStorageTextureClearsToZeroInRenderPa
 // Verify that the texture is correctly cleared to 0 before its first usage as a read-only storage
 // texture in a compute pass.
 TEST_P(StorageTextureZeroInitTests, ReadonlyStorageTextureClearsToZeroInComputePass) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     wgpu::Texture readonlyStorageTexture =
         CreateTexture(wgpu::TextureFormat::R32Uint, wgpu::TextureUsage::Storage);
 
@@ -1235,9 +1217,6 @@ TEST_P(StorageTextureZeroInitTests, ReadonlyStorageTextureClearsToZeroInComputeP
 // Verify that the texture is correctly cleared to 0 before its first usage as a write-only storage
 // storage texture in a render pass.
 TEST_P(StorageTextureZeroInitTests, WriteonlyStorageTextureClearsToZeroInRenderPass) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     // Prepare the write-only storage texture.
     constexpr uint32_t kTexelSizeR32Uint = 4u;
     wgpu::Texture writeonlyStorageTexture = CreateTexture(
@@ -1251,9 +1230,6 @@ TEST_P(StorageTextureZeroInitTests, WriteonlyStorageTextureClearsToZeroInRenderP
 // Verify that the texture is correctly cleared to 0 before its first usage as a write-only storage
 // texture in a compute pass.
 TEST_P(StorageTextureZeroInitTests, WriteonlyStorageTextureClearsToZeroInComputePass) {
-    // TODO(crbug.com/dawn/624): this test fails validation on GLES. Investigate why.
-    DAWN_SKIP_TEST_IF(IsOpenGLES() && IsBackendValidationEnabled());
-
     // Prepare the write-only storage texture.
     constexpr uint32_t kTexelSizeR32Uint = 4u;
     wgpu::Texture writeonlyStorageTexture = CreateTexture(