cc: Move raster_source from Tile to PrioritizedTile

cc/resources/tile.h

Index: cc/resources/tile.h
diff --git a/cc/resources/tile.h b/cc/resources/tile.h
index 4d41ebff7844d0be6406f50daaa2b72555c5e825..2060e23d4ddadac8e7da13484f1d3c69e3635644 100644
--- a/cc/resources/tile.h
+++ b/cc/resources/tile.h
@@ -13,6 +13,7 @@
 
 namespace cc {
 
+class PrioritizedTile;
 class TileManager;
 struct TilePriority;
 
@@ -31,10 +32,6 @@ class CC_EXPORT Tile {
     return id_;
   }
 
-  RasterSource* raster_source() { return raster_source_.get(); }
-
-  const RasterSource* raster_source() const { return raster_source_.get(); }
-
   // TODO(vmpstr): Move this to the iterators.
   bool required_for_activation() const { return required_for_activation_; }
   void set_required_for_activation(bool is_required) {
@@ -55,7 +52,7 @@ class CC_EXPORT Tile {
            !draw_info_.IsReadyToDraw();
   }
 
-  void AsValueWithPriorityInto(const TilePriority& priority,
+  void AsValueWithPriorityInto(const PrioritizedTile& prioritized_tile,
                                base::trace_event::TracedValue* dict) const;
 
   inline bool IsReadyToDraw() const { return draw_info_.IsReadyToDraw(); }
@@ -71,14 +68,6 @@ class CC_EXPORT Tile {
 
   int source_frame_number() const { return source_frame_number_; }
 
-  void set_raster_source(RasterSource* raster_source) {
-    DCHECK(raster_source->CoversRect(content_rect_, contents_scale_))
-        << "Recording rect: "
-        << gfx::ScaleToEnclosingRect(content_rect_, 1.f / contents_scale_)
-               .ToString();
-    raster_source_ = raster_source;
-  }
-
   size_t GPUMemoryUsageInBytes() const;
 
   gfx::Size desired_texture_size() const { return desired_texture_size_; }
@@ -109,7 +98,6 @@ class CC_EXPORT Tile {
   bool HasRasterTask() const { return !!raster_task_.get(); }
 
   TileManager* tile_manager_;
-  scoped_refptr<RasterSource> raster_source_;
   gfx::Size desired_texture_size_;
   gfx::Rect content_rect_;
   float contents_scale_;