Implement on demand quad rasterization for PicturePiles.

cc/output/gl_renderer.h

Index: cc/output/gl_renderer.h
diff --git a/cc/output/gl_renderer.h b/cc/output/gl_renderer.h
index 8dd2c6436ea8795919cd798161d08cf6a0184bb0..cd90e28c5c91e992f40a09b963009558703bbd6d 100644
--- a/cc/output/gl_renderer.h
+++ b/cc/output/gl_renderer.h
@@ -24,6 +24,7 @@ namespace cc {
 
 class GLRendererShaderTest;
 class OutputSurface;
+class PictureDrawQuad;
 class ScopedResource;
 class StreamVideoDrawQuad;
 class TextureDrawQuad;
@@ -138,8 +139,13 @@ class CC_EXPORT GLRenderer :
   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 SetShaderOpacity(float opacity, int alpha_location);
   void SetShaderQuadF(const gfx::QuadF& quad, int quad_location);
@@ -320,6 +326,9 @@ class CC_EXPORT GLRenderer :
 
   scoped_refptr<ResourceProvider::Fence> last_swap_fence_;
 
+  SkBitmap on_demand_tile_raster_bitmap_;
+  ResourceProvider::ResourceId on_demand_tile_raster_resource_id_;
+
   DISALLOW_COPY_AND_ASSIGN(GLRenderer);
 };