cc: Start using raster/eviction iterators.

cc/resources/tile.cc

Index: cc/resources/tile.cc
diff --git a/cc/resources/tile.cc b/cc/resources/tile.cc
index 781d00899e13935ee458a7c6cef28c082d17c273..0315c90633997afe0e73b32cffbaa8b65381458e 100644
--- a/cc/resources/tile.cc
+++ b/cc/resources/tile.cc
@@ -25,7 +25,6 @@ Tile::Tile(TileManager* tile_manager,
            int source_frame_number,
            int flags)
     : RefCountedManaged<Tile>(tile_manager),
-      tile_manager_(tile_manager),
       tile_size_(tile_size),
       content_rect_(content_rect),
       contents_scale_(contents_scale),
@@ -34,6 +33,9 @@ Tile::Tile(TileManager* tile_manager,
       layer_id_(layer_id),
       source_frame_number_(source_frame_number),
       flags_(flags),
+      tiling_i_index_(-1),
+      tiling_j_index_(-1),
+      required_for_activation_(false),
       id_(s_next_id_++) {
   set_picture_pile(picture_pile);
 }
@@ -45,19 +47,15 @@ Tile::~Tile() {
 }
 
 void Tile::SetPriority(WhichTree tree, const TilePriority& priority) {
-  if (priority == priority_[tree])
-    return;
-
   priority_[tree] = priority;
-  tile_manager_->DidChangeTilePriority(this);
 }
 
 void Tile::MarkRequiredForActivation() {
-  if (priority_[PENDING_TREE].required_for_activation)
-    return;
+  required_for_activation_ = true;
+}
 
-  priority_[PENDING_TREE].required_for_activation = true;
-  tile_manager_->DidChangeTilePriority(this);
+void Tile::UnsetRequiredForActivation() {
+  required_for_activation_ = false;
 }
 
 scoped_ptr<base::Value> Tile::AsValue() const {