cc: Implement overdraw feedback debugging feature.

ui/compositor/test/in_process_context_factory.cc

 // Copyright 2014 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 "ui/compositor/test/in_process_context_factory.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 52 matching lines @@
     client_ = client;
   }
   void EnsureBackbuffer() override {}
   void DiscardBackbuffer() override {}
   void BindFramebuffer() override {
     context_provider()->ContextGL()->BindFramebuffer(GL_FRAMEBUFFER, 0);
   }
   void Reshape(const gfx::Size& size,
                float device_scale_factor,
                const gfx::ColorSpace& color_space,
-               bool has_alpha) override {
+               bool has_alpha,
+               bool use_stencil) override {
     context_provider()->ContextGL()->ResizeCHROMIUM(
         size.width(), size.height(), device_scale_factor, has_alpha);
   }
   void SwapBuffers(cc::OutputSurfaceFrame frame) override {
     DCHECK(context_provider_.get());
     if (frame.sub_buffer_rect == gfx::Rect(frame.size)) {
       context_provider_->ContextSupport()->Swap();
     } else {
       context_provider_->ContextSupport()->PartialSwapBuffers(
           frame.sub_buffer_rect);
@@ skipping 242 matching lines @@
     data->surface_handle = tracker->AddSurfaceForNativeWidget(widget);
 #endif
   }
 
   PerCompositorData* return_ptr = data.get();
   per_compositor_data_[compositor] = std::move(data);
   return return_ptr;
 }
 
 }  // namespace ui