Preliminary compositor disabling patch.

content/browser/compositor/buffer_queue.h

 // 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.
 
 #ifndef CONTENT_BROWSER_COMPOSITOR_BUFFER_QUEUE_H_
 #define CONTENT_BROWSER_COMPOSITOR_BUFFER_QUEUE_H_
 
 #include <queue>
 #include <vector>
 
@@ skipping 26 matching lines @@
   virtual ~BufferQueue();
 
   void Initialize();
 
   void BindFramebuffer();
   void SwapBuffers(const gfx::Rect& damage);
   void PageFlipComplete();
   void Reshape(const gfx::Size& size, float scale_factor);
 
   unsigned int current_texture_id() const { return current_surface_.texture; }
+  unsigned int last_texture_id() const {
+    return in_flight_surfaces_.back().texture;
+  }
   unsigned int fbo() const { return fbo_; }
 
  private:
   friend class BufferQueueTest;
 
   struct AllocatedSurface {
     AllocatedSurface() : texture(0), image(0) {}
     AllocatedSurface(unsigned int texture,
                      unsigned int image,
                      const gfx::Rect& rect)
@@ skipping 30 matching lines @@
   GLHelper* gl_helper_;
   BrowserGpuMemoryBufferManager* gpu_memory_buffer_manager_;
   int surface_id_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferQueue);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_BUFFER_QUEUE_H_