[WIP] Implement BackGroundFilter as seperate layer in cc

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 23 matching lines @@
 
 class GLRendererShaderTest;
 class OutputSurface;
 class PictureDrawQuad;
 class ScopedResource;
 class StreamVideoDrawQuad;
 class TextureDrawQuad;
 class TextureMailboxDeleter;
 class GeometryBinding;
 class ScopedEnsureFramebufferAllocation;
+class FilterDrawQuad;
 
 // Class that handles drawing of composited render layers using GL.
 class CC_EXPORT GLRenderer : public DirectRenderer {
  public:
   class ScopedUseGrContext;
 
   static scoped_ptr<GLRenderer> Create(
       RendererClient* client,
       const LayerTreeSettings* settings,
       OutputSurface* output_surface,
@@ skipping 106 matching lines @@
   void DrawIOSurfaceQuad(const DrawingFrame* frame,
                          const IOSurfaceDrawQuad* quad);
   void DrawTileQuad(const DrawingFrame* frame, const TileDrawQuad* quad);
   void DrawContentQuad(const DrawingFrame* frame,
                        const ContentDrawQuadBase* quad,
                        ResourceProvider::ResourceId resource_id);
   void DrawYUVVideoQuad(const DrawingFrame* frame,
                         const YUVVideoDrawQuad* quad);
   void DrawPictureQuad(const DrawingFrame* frame,
                        const PictureDrawQuad* quad);
+  void DrawFilterContentQuad(const DrawingFrame* frame,
+                             const FilterDrawQuad* quad);
 
   void SetShaderOpacity(float opacity, int alpha_location);
   void SetShaderQuadF(const gfx::QuadF& quad, int quad_location);
   void DrawQuadGeometry(const DrawingFrame* frame,
                         const gfx::Transform& draw_transform,
                         const gfx::RectF& quad_rect,
                         int matrix_location);
   void SetUseProgram(unsigned program);
 
   void CopyTextureToFramebuffer(const DrawingFrame* frame,
@@ 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_