cc: Support anti-aliasing for solid color layers.

cc/gl_renderer.h

Index: cc/gl_renderer.h
diff --git a/cc/gl_renderer.h b/cc/gl_renderer.h
index 1fbe28dd439be5f5128e95795fd0eb13cc780692..890b0cf2a993fc6b38813a9e4ec5f0a5bd1d73da 100644
--- a/cc/gl_renderer.h
+++ b/cc/gl_renderer.h
@@ -169,7 +169,8 @@ private:
     typedef ProgramBinding<VertexShaderPosTexYUVStretch, FragmentShaderYUVVideo> VideoYUVProgram;
 
     // Special purpose / effects shaders.
-    typedef ProgramBinding<VertexShaderPos, FragmentShaderColor> SolidColorProgram;
+    typedef ProgramBinding<VertexShaderQuad, FragmentShaderColor> SolidColorProgram;
+    typedef ProgramBinding<VertexShaderQuad, FragmentShaderColorAA> SolidColorProgramAA;
 
     const TileProgram* tileProgram();
     const TileProgramOpaque* tileProgramOpaque();
@@ -192,6 +193,7 @@ private:
     const VideoStreamTextureProgram* videoStreamTextureProgram();
 
     const SolidColorProgram* solidColorProgram();
+    const SolidColorProgramAA* solidColorProgramAA();
 
     scoped_ptr<TileProgram> m_tileProgram;
     scoped_ptr<TileProgramOpaque> m_tileProgramOpaque;
@@ -214,6 +216,7 @@ private:
     scoped_ptr<VideoStreamTextureProgram> m_videoStreamTextureProgram;
 
     scoped_ptr<SolidColorProgram> m_solidColorProgram;
+    scoped_ptr<SolidColorProgramAA> m_solidColorProgramAA;
 
     OutputSurface* m_outputSurface;
     WebKit::WebGraphicsContext3D* m_context;