cc: Make the ScopedPtrVector and ScopedPtrDeque containers act like STL vector and deque.

cc/picture_layer_impl.cc

Index: cc/picture_layer_impl.cc
diff --git a/cc/picture_layer_impl.cc b/cc/picture_layer_impl.cc
index 5c1d8e82dc8a5027556570f3072ec8bad7cd958d..5fdd0ad7ad3f4d23ce31eabfe817194f37f567e5 100644
--- a/cc/picture_layer_impl.cc
+++ b/cc/picture_layer_impl.cc
@@ -99,7 +99,7 @@ void PictureLayerImpl::SyncFromActiveLayer(const PictureLayerImpl* other) {
   for (size_t i = 0; i < other->tilings_.size(); ++i) {
     scoped_ptr<PictureLayerTiling> clone = other->tilings_[i]->Clone();
     clone->set_client(this);
-    tilings_.append(clone.Pass());
+    tilings_.push_back(clone.Pass());
   }
 }
 
@@ -113,7 +113,7 @@ void PictureLayerImpl::Update() {
     tiling->set_client(this);
     tiling->SetBounds(contentBounds());
     tiling->create_tiles(gfx::Rect(gfx::Point(), contentBounds()));
-    tilings_.append(tiling.Pass());
+    tilings_.push_back(tiling.Pass());
 
     // TODO(enne): handle invalidations, create new tiles
   }