Preliminary compositor disabling patch.

cc/output/gl_renderer.h

 // Copyright 2010 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.
 
 #ifndef CC_OUTPUT_GL_RENDERER_H_
 #define CC_OUTPUT_GL_RENDERER_H_
 
 #include "base/cancelable_callback.h"
 #include "cc/base/cc_export.h"
 #include "cc/base/scoped_ptr_deque.h"
@@ skipping 239 matching lines @@
                         const gfx::Size& size);
 
   void ReinitializeGLState();
   void RestoreGLState();
   void RestoreFramebuffer(DrawingFrame* frame);
 
   void DiscardBackbuffer() override;
   void EnsureBackbuffer() override;
   void EnforceMemoryPolicy();
 
-  void ScheduleOverlays(DrawingFrame* frame);
+  void ScheduleOverlays(DrawingFrame* frame) override;
 
   typedef ScopedPtrVector<ResourceProvider::ScopedReadLockGL>
       OverlayResourceLockList;
   OverlayResourceLockList pending_overlay_resources_;
   OverlayResourceLockList in_use_overlay_resources_;
 
   RendererCapabilitiesImpl capabilities_;
 
   unsigned offscreen_framebuffer_id_;
 
@@ skipping 253 matching lines @@
 #if DEBUG_GL_CALLS && !defined(NDEBUG)
 #define GLC(context, x)                                                        \
   (x, GLRenderer::DebugGLCall(&* context, #x, __FILE__, __LINE__))
 #else
 #define GLC(context, x) (x)
 #endif
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_GL_RENDERER_H_