cc: Separate the priority from the tile and put in new PrioritizedTile

cc/resources/tile.h

Index: cc/resources/tile.h
diff --git a/cc/resources/tile.h b/cc/resources/tile.h
index 45c2b0482fdd77414203a12d8e463c8e0b8f678d..8d07eba52cef2ae912680c8e7d38bdbdc843065d 100644
--- a/cc/resources/tile.h
+++ b/cc/resources/tile.h
@@ -9,13 +9,13 @@
 #include "cc/base/ref_counted_managed.h"
 #include "cc/resources/raster_source.h"
 #include "cc/resources/tile_draw_info.h"
-#include "cc/resources/tile_priority.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace cc {
 
 class TileManager;
+struct TilePriority;
 
 class CC_EXPORT Tile : public RefCountedManaged<Tile> {
  public:
@@ -31,14 +31,6 @@ class CC_EXPORT Tile : public RefCountedManaged<Tile> {
 
   const RasterSource* raster_source() const { return raster_source_.get(); }
 
-  const TilePriority& priority() const { return priority_; }
-
-  void set_priority(const TilePriority& priority) { priority_ = priority; }
-
-  // TODO(vmpstr): Move this to the iterators.
-  void set_is_occluded(bool is_occluded) { is_occluded_ = is_occluded; }
-  bool is_occluded() const { return is_occluded_; }
-
   // TODO(vmpstr): Move this to the iterators.
   bool required_for_activation() const { return required_for_activation_; }
   void set_required_for_activation(bool is_required) {
@@ -96,9 +88,7 @@ class CC_EXPORT Tile : public RefCountedManaged<Tile> {
 
  private:
   friend class TileManager;
-  friend class PrioritizedTileSet;
   friend class FakeTileManager;
-  friend class BinComparator;
   friend class FakePictureLayerImpl;
 
   // Methods called by by tile manager.
@@ -118,9 +108,7 @@ class CC_EXPORT Tile : public RefCountedManaged<Tile> {
   gfx::Size desired_texture_size_;
   gfx::Rect content_rect_;
   float contents_scale_;
-  bool is_occluded_;
 
-  TilePriority priority_;
   TileDrawInfo draw_info_;
 
   int layer_id_;