cc: Start using raster/eviction iterators.

cc/resources/picture_layer_tiling_set.cc

Index: cc/resources/picture_layer_tiling_set.cc
diff --git a/cc/resources/picture_layer_tiling_set.cc b/cc/resources/picture_layer_tiling_set.cc
index fe55d76ef133d9eb7af9acbced2105ac11dac5c0..6159726ec240924a82888114c107febadc01b82e 100644
--- a/cc/resources/picture_layer_tiling_set.cc
+++ b/cc/resources/picture_layer_tiling_set.cc
@@ -75,7 +75,6 @@ bool PictureLayerTilingSet::SyncTilings(const PictureLayerTilingSet& other,
       this_tiling->Invalidate(layer_invalidation);
 
       this_tiling->UpdateTilesToCurrentPile();
-      this_tiling->CreateMissingTilesInLiveTilesRect();
       if (this_tiling->resolution() == HIGH_RESOLUTION)
         have_high_res_tiling = true;
 
@@ -100,7 +99,7 @@ bool PictureLayerTilingSet::SyncTilings(const PictureLayerTilingSet& other,
 
 void PictureLayerTilingSet::RemoveTilesInRegion(const Region& region) {
   for (size_t i = 0; i < tilings_.size(); ++i)
-    tilings_[i]->RemoveTilesInRegion(region);
+    tilings_[i]->Invalidate(region);
 }
 
 PictureLayerTiling* PictureLayerTilingSet::AddTiling(float contents_scale) {
@@ -312,11 +311,6 @@ void PictureLayerTilingSet::DidBecomeActive() {
     tilings_[i]->DidBecomeActive();
 }
 
-void PictureLayerTilingSet::DidBecomeRecycled() {
-  for (size_t i = 0; i < tilings_.size(); ++i)
-    tilings_[i]->DidBecomeRecycled();
-}
-
 scoped_ptr<base::Value> PictureLayerTilingSet::AsValue() const {
   scoped_ptr<base::ListValue> state(new base::ListValue());
   for (size_t i = 0; i < tilings_.size(); ++i)