Roll src/third_party/dawn/ 0c4d75931..d46cabd73 (5 commits)

https://dawn.googlesource.com/dawn.git/+log/0c4d75931a0f..d46cabd73fb4

$ git log 0c4d75931..d46cabd73 --date=short --no-merges --format='%ad %ae %s'
2019-09-20 cwallez Fix the orientation of CubeReflection
2019-09-20 cwallez Remove indirection for colorStates
2019-09-20 cwallez Make ComboRenderPipelineDescriptor non copyable.
2019-09-20 yunchao.he Set y-axis up in normalized coordinate system.
2019-09-20 cwallez Remove indirection for colorAttachments

Created with:
  roll-dep src/third_party/dawn

TBR=kbr@chromium.org

Bug: dawn:22
Change-Id: I06d6a7904e136381489968898a4279dbb58515d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1817285Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#698712}

DEPS

@@ -297,7 +297,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'dawn_revision': '0c4d75931a0fde954689e46806bfc84889463114',
+  'dawn_revision': 'd46cabd73fb4b06bc5a18ce56b2803bb4bb64d21',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.

gpu/command_buffer/service/shared_image_backing_factory_iosurface_unittest.cc

@@ -300,12 +300,9 @@ TEST_F(SharedImageBackingFactoryIOSurfaceTest, Dawn_SkiaGL) {
     color_desc.storeOp = dawn::StoreOp::Store;
     color_desc.clearColor = {0, 255, 0, 255};
 
-    dawn::RenderPassColorAttachmentDescriptor* color_attachments_ptr =
-        &color_desc;
-
     dawn::RenderPassDescriptor renderPassDesc;
     renderPassDesc.colorAttachmentCount = 1;
-    renderPassDesc.colorAttachments = &color_attachments_ptr;
+    renderPassDesc.colorAttachments = &color_desc;
     renderPassDesc.depthStencilAttachment = nullptr;
 
     dawn::CommandEncoder encoder = device.CreateCommandEncoder();

gpu/command_buffer/tests/webgpu_mailbox_unittest.cc

@@ -113,12 +113,9 @@ TEST_F(WebGPUMailboxTest, WriteToMailboxThenReadFromIt) {
     color_desc.storeOp = dawn::StoreOp::Store;
     color_desc.clearColor = {0, 255, 0, 255};
 
-    dawn::RenderPassColorAttachmentDescriptor* color_attachments_ptr =
-        &color_desc;
-
     dawn::RenderPassDescriptor render_pass_desc;
     render_pass_desc.colorAttachmentCount = 1;
-    render_pass_desc.colorAttachments = &color_attachments_ptr;
+    render_pass_desc.colorAttachments = &color_desc;
     render_pass_desc.depthStencilAttachment = nullptr;
 
     dawn::CommandEncoder encoder = device.CreateCommandEncoder();

third_party/blink/renderer/modules/webgpu/gpu_command_encoder.cc

@@ -178,23 +178,11 @@ GPURenderPassEncoder* GPUCommandEncoder::beginRenderPass(
   dawn_desc.colorAttachmentCount = color_attachment_count;
   dawn_desc.colorAttachments = nullptr;
 
-  using DescriptorPtr = DawnRenderPassColorAttachmentDescriptor*;
-  using DescriptorArray = DawnRenderPassColorAttachmentDescriptor[];
-  using DescriptorPtrArray = DescriptorPtr[];
-
-  std::unique_ptr<DescriptorArray> color_attachments;
-  std::unique_ptr<DescriptorPtrArray> color_attachment_ptrs;
+  std::unique_ptr<DawnRenderPassColorAttachmentDescriptor[]> color_attachments;
 
   if (color_attachment_count > 0) {
     color_attachments = AsDawnType(descriptor->colorAttachments());
-
-    color_attachment_ptrs = std::unique_ptr<DescriptorPtrArray>(
-        new DescriptorPtr[color_attachment_count]);
-
-    for (uint32_t i = 0; i < color_attachment_count; ++i) {
-      color_attachment_ptrs[i] = color_attachments.get() + i;
-    }
-    dawn_desc.colorAttachments = color_attachment_ptrs.get();
+    dawn_desc.colorAttachments = color_attachments.get();
   }
 
   DawnRenderPassDepthStencilAttachmentDescriptor depthStencilAttachment = {};

third_party/blink/renderer/modules/webgpu/gpu_render_pipeline.cc

@@ -276,8 +276,7 @@ GPURenderPipeline* GPURenderPipeline::Create(
   dawn_desc.colorStateCount =
       static_cast<uint32_t>(webgpu_desc->colorStates().size());
 
-  DawnColorStateDescriptor* color_state_descriptors = color_states.get();
-  dawn_desc.colorStates = &color_state_descriptors;
+  dawn_desc.colorStates = color_states.get();
 
   dawn_desc.sampleMask = webgpu_desc->sampleMask();
   dawn_desc.alphaToCoverageEnabled = webgpu_desc->alphaToCoverageEnabled();