Add support to GLRenderer for different blending for solid color quads

cc/output/renderer_pixeltest.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 <stddef.h>
 #include <stdint.h>
 #include <memory>
 
 #include "base/message_loop/message_loop.h"
 #include "cc/base/math_util.h"
@@ skipping 792 matching lines @@
 
   RenderPassList pass_list;
   pass_list.push_back(std::move(pass));
 
   EXPECT_TRUE(this->RunPixelTest(
       &pass_list,
       base::FilePath(FILE_PATH_LITERAL("green_alpha.png")),
       FuzzyPixelOffByOneComparator(true)));
 }
 
+TEST_F(GLRendererPixelTest, SolidColorBlend) {
+  gfx::Rect rect(this->device_viewport_size_);
+
+  int id = 1;
+  std::unique_ptr<RenderPass> pass = CreateTestRootRenderPass(id, rect);
+
+  SharedQuadState* shared_state =
+      CreateTestSharedQuadState(gfx::Transform(), rect, pass.get());
+  shared_state->opacity = 1 - 16.0f / 255;
+  shared_state->blend_mode = SkBlendMode::kDstOut;
+
+  SolidColorDrawQuad* color_quad =
+      pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
+  color_quad->SetNew(shared_state, rect, rect, SK_ColorRED, false);
+
+  SharedQuadState* shared_state_background =
+      CreateTestSharedQuadState(gfx::Transform(), rect, pass.get());
+
+  SkColor background_color = SkColorSetRGB(0xff, 0xff * 14 / 16, 0xff);
+  SolidColorDrawQuad* color_quad_background =
+      pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
+  color_quad_background->SetNew(shared_state_background, rect, rect,
+                                background_color, false);
+  // Result should be r=16, g=14, b=16.
+
+  RenderPassList pass_list;
+  pass_list.push_back(std::move(pass));
+
+  EXPECT_TRUE(this->RunPixelTest(
+      &pass_list, base::FilePath(FILE_PATH_LITERAL("dark_grey.png")),
+      FuzzyPixelOffByOneComparator(true)));
+}
+
 TEST_F(GLRendererPixelTest,
        PremultipliedTextureWithBackgroundAndVertexOpacity) {
   gfx::Rect rect(this->device_viewport_size_);
 
   int id = 1;
   std::unique_ptr<RenderPass> pass = CreateTestRootRenderPass(id, rect);
 
   SharedQuadState* texture_quad_state =
       CreateTestSharedQuadState(gfx::Transform(), rect, pass.get());
   texture_quad_state->opacity = 0.8f;
@@ skipping 2726 matching lines @@
 INSTANTIATE_TEST_CASE_P(
     ToColorSpace,
     ColorTransformPixelTest,
     testing::Combine(testing::ValuesIn(intermediate_color_spaces),
                      testing::ValuesIn(dst_color_spaces)));
 
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace
 }  // namespace cc