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 d6594dfd0dab8b20607b5329414f0adc94c0a6eb..1806ebc01c06b61ecdd318e2b7b1bdf793558c3b 100644
--- a/cc/resources/picture_layer_tiling_set.cc
+++ b/cc/resources/picture_layer_tiling_set.cc
@@ -218,7 +218,14 @@ Tile* PictureLayerTilingSet::CoverageIterator::operator*() const {
   return *tiling_iter_;
 }
 
-PictureLayerTiling* PictureLayerTilingSet::CoverageIterator::CurrentTiling() {
+TileResolution PictureLayerTilingSet::CoverageIterator::resolution() const {
+  const PictureLayerTiling* tiling = CurrentTiling();
+  DCHECK(tiling);
+  return tiling->resolution();
+}
+
+PictureLayerTiling* PictureLayerTilingSet::CoverageIterator::CurrentTiling()
+    const {
   if (current_tiling_ < 0)
     return NULL;
   if (static_cast<size_t>(current_tiling_) >= set_->tilings_.size())
@@ -307,16 +314,6 @@ PictureLayerTilingSet::CoverageIterator::operator bool() const {
       region_iter_.has_rect();
 }
 
-void PictureLayerTilingSet::DidBecomeActive() {
-  for (size_t i = 0; i < tilings_.size(); ++i)
-    tilings_[i]->DidBecomeActive();
-}
-
-void PictureLayerTilingSet::DidBecomeRecycled() {
-  for (size_t i = 0; i < tilings_.size(); ++i)
-    tilings_[i]->DidBecomeRecycled();
-}
-
 void PictureLayerTilingSet::AsValueInto(base::debug::TracedValue* state) const {
   for (size_t i = 0; i < tilings_.size(); ++i) {
     state->BeginDictionary();