WebGraphicsContext3DCommandBufferImpl cleanup, Canvas2D thottling fix, GpuScheduler fix.

content/renderer/gpu/webgraphicscontext3d_command_buffer_impl.h

 // Copyright (c) 2011 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_RENDERER_GPU_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
 #define CONTENT_RENDERER_GPU_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
 #pragma once
 
 #if defined(ENABLE_GPU)
 
@@ skipping 403 matching lines @@
   virtual void requestExtensionCHROMIUM(const char*);
 
   virtual void blitFramebufferCHROMIUM(
       WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1,
       WGC3Dint dstX0, WGC3Dint dstY0, WGC3Dint dstX1, WGC3Dint dstY1,
       WGC3Dbitfield mask, WGC3Denum filter);
   virtual void renderbufferStorageMultisampleCHROMIUM(
       WGC3Denum target, WGC3Dsizei samples, WGC3Denum internalformat,
       WGC3Dsizei width, WGC3Dsizei height);
 
-  virtual WebGLId createCompositorTexture(WGC3Dsizei width, WGC3Dsizei height);
-  virtual void deleteCompositorTexture(WebGLId parent_texture);
-  virtual void copyTextureToCompositor(WebGLId texture,
-                                       WebGLId parent_texture);
-
   RendererGLContext* context() { return context_; }
 
   virtual void setContextLostCallback(
       WebGraphicsContext3D::WebGraphicsContextLostCallback* callback);
 
  private:
   // SwapBuffers callback.
   void OnSwapBuffersComplete();
   virtual void OnContextLost();
 
@@ skipping 22 matching lines @@
 #ifdef FLIP_FRAMEBUFFER_VERTICALLY
   scoped_array<uint8> scanline_;
   void FlipVertically(uint8* framebuffer,
                       unsigned int width,
                       unsigned int height);
 #endif
 };
 
 #endif  // defined(ENABLE_GPU)
 #endif  // CONTENT_RENDERER_GPU_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_