cc: Specify rasterization color space

cc/resources/resource_provider.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/resource_provider.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 866 matching lines @@
 }
 
 ResourceProvider::TextureHint ResourceProvider::GetTextureHint(ResourceId id) {
   return GetResource(id)->hint;
 }
 
 sk_sp<SkColorSpace> ResourceProvider::GetResourceSkColorSpace(
     const Resource* resource) const {
   if (!settings_.enable_color_correct_rendering)
     return nullptr;
-  return resource->color_space.ToSkColorSpace();
+  // Returning the nonlinear blended color space matches the expectation of the
+  // web that colors are blended in the output color space, not in a
+  // physically-based linear space.
+  return resource->color_space.ToNonlinearBlendedSkColorSpace();
 }
 
 void ResourceProvider::CopyToResource(ResourceId id,
                                       const uint8_t* image,
                                       const gfx::Size& image_size) {
   Resource* resource = GetResource(id);
   DCHECK(!resource->locked_for_write);
   DCHECK(!resource->lock_for_read_count);
   DCHECK(resource->origin == Resource::INTERNAL);
   DCHECK_EQ(resource->exported_count, 0);
@@ skipping 1274 matching lines @@
 
     const int kImportance = 2;
     pmd->CreateSharedGlobalAllocatorDump(guid);
     pmd->AddOwnershipEdge(dump->guid(), guid, kImportance);
   }
 
   return true;
 }
 
 }  // namespace cc