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 e6a668d2086386442426039228e7ef1553f0650e..66345328c2d102c7d784290d6d23706ab80ac13c 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;
@@ -137,9 +138,12 @@ class CC_EXPORT GLRenderer :
   void FlushTextureQuadCache();
   void DrawIOSurfaceQuad(const DrawingFrame& frame,
                          const IOSurfaceDrawQuad* quad);
-  void DrawTileQuad(const DrawingFrame& frame, const TileDrawQuad* quad);
+  void DrawTileQuad(const DrawingFrame& frame,
+                    const TileDrawQuadBase* quad,
+                    unsigned resource_id);

[danakj, 2013/03/21 02:34:42]

ResourceProvider::ResourceId is the type

[Leandro Graciá Gil, 2013/03/21 16:42:48]

Done.

   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 +324,10 @@ class CC_EXPORT GLRenderer :
 
   scoped_refptr<ResourceProvider::Fence> last_swap_fence_;
 
+  SkBitmap on_demand_tile_raster_bitmap_;
+  GLuint on_demand_tile_raster_texture_;
+  ResourceProvider::ResourceId on_demand_tile_raster_resource_id_;
+
   DISALLOW_COPY_AND_ASSIGN(GLRenderer);
 };