cc: Remove the base RasterSource

cc/quads/picture_draw_quad.h

Index: cc/quads/picture_draw_quad.h
diff --git a/cc/quads/picture_draw_quad.h b/cc/quads/picture_draw_quad.h
index 9a01a9be029ae0851870bac8a1382e70e15e7ffc..93140eb4c195a86e7632a47335d7101dd9f70456 100644
--- a/cc/quads/picture_draw_quad.h
+++ b/cc/quads/picture_draw_quad.h
@@ -8,7 +8,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
-#include "cc/playback/raster_source.h"
+#include "cc/playback/display_list_raster_source.h"
 #include "cc/quads/content_draw_quad_base.h"
 #include "cc/resources/resource_provider.h"
 #include "ui/gfx/geometry/rect.h"
@@ -33,7 +33,7 @@ class CC_EXPORT PictureDrawQuad : public ContentDrawQuadBase {
               ResourceFormat texture_format,
               const gfx::Rect& content_rect,
               float contents_scale,
-              scoped_refptr<RasterSource> raster_source);
+              scoped_refptr<DisplayListRasterSource> raster_source);
 
   void SetAll(const SharedQuadState* shared_quad_state,
               const gfx::Rect& rect,
@@ -46,11 +46,11 @@ class CC_EXPORT PictureDrawQuad : public ContentDrawQuadBase {
               ResourceFormat texture_format,
               const gfx::Rect& content_rect,
               float contents_scale,
-              scoped_refptr<RasterSource> raster_source);
+              scoped_refptr<DisplayListRasterSource> raster_source);
 
   gfx::Rect content_rect;
   float contents_scale;
-  scoped_refptr<RasterSource> raster_source;
+  scoped_refptr<DisplayListRasterSource> raster_source;
   ResourceFormat texture_format;
 
   static const PictureDrawQuad* MaterialCast(const DrawQuad* quad);