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 44d766a839c8479cdc568dbdec6d1997eb6493b4..b369b73cdf64842e17f2b58d8463f1fcf8eca77e 100644
--- a/cc/resources/picture_layer_tiling_set.cc
+++ b/cc/resources/picture_layer_tiling_set.cc
@@ -71,7 +71,6 @@ bool PictureLayerTilingSet::SyncTilings(const PictureLayerTilingSet& other,
 
       this_tiling->UpdateTilesToCurrentPile(layer_invalidation,
                                             new_layer_bounds);
-      this_tiling->CreateMissingTilesInLiveTilesRect();
       if (this_tiling->resolution() == HIGH_RESOLUTION)
         have_high_res_tiling = true;
 
@@ -197,6 +196,14 @@ gfx::Size PictureLayerTilingSet::CoverageIterator::texture_size() const {
   return tiling_iter_.texture_size();
 }
 
+TileResolution PictureLayerTilingSet::CoverageIterator::resolution() {
+  PictureLayerTiling* tiling = CurrentTiling();
+  if (tiling)
+    return tiling->resolution();
+  NOTREACHED();
+  return NON_IDEAL_RESOLUTION;
+}
+
 Tile* PictureLayerTilingSet::CoverageIterator::operator->() const {
   if (!tiling_iter_)
     return NULL;
@@ -303,11 +310,6 @@ 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)