cc: Implement overdraw feedback debugging feature.

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 2177 matching lines @@
       &this->pass_list_,
       base::FilePath(FILE_PATH_LITERAL("background_filter.png")),
       ExactPixelComparator(true)));
 }
 
 class ExternalStencilPixelTest : public GLRendererPixelTest {
  protected:
   void ClearBackgroundToGreen() {
     GLES2Interface* gl = output_surface_->context_provider()->ContextGL();
     output_surface_->EnsureBackbuffer();
-    output_surface_->Reshape(device_viewport_size_, 1, gfx::ColorSpace(), true);
+    output_surface_->Reshape(device_viewport_size_, 1, gfx::ColorSpace(), true,
+                             false);
     gl->ClearColor(0.f, 1.f, 0.f, 1.f);
     gl->Clear(GL_COLOR_BUFFER_BIT);
   }
 
   void PopulateStencilBuffer() {
     // Set two quadrants of the stencil buffer to 1.
     GLES2Interface* gl = output_surface_->context_provider()->ContextGL();
     output_surface_->EnsureBackbuffer();
-    output_surface_->Reshape(device_viewport_size_, 1, gfx::ColorSpace(), true);
+    output_surface_->Reshape(device_viewport_size_, 1, gfx::ColorSpace(), true,
+                             false);
     gl->ClearStencil(0);
     gl->Clear(GL_STENCIL_BUFFER_BIT);
     gl->Enable(GL_SCISSOR_TEST);
     gl->ClearStencil(1);
     gl->Scissor(0,
                 0,
                 device_viewport_size_.width() / 2,
                 device_viewport_size_.height() / 2);
     gl->Clear(GL_STENCIL_BUFFER_BIT);
     gl->Scissor(device_viewport_size_.width() / 2,
@@ skipping 1046 matching lines @@
 
   EXPECT_TRUE(this->RunPixelTest(
       &pass_list, base::FilePath(FILE_PATH_LITERAL("spiral.png")),
       FuzzyPixelOffByOneComparator(true)));
 }
 
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace
 }  // namespace cc