Revert two cc patches due to crashes on canary.

cc/test/fake_picture_layer_impl.cc

Index: cc/test/fake_picture_layer_impl.cc
diff --git a/cc/test/fake_picture_layer_impl.cc b/cc/test/fake_picture_layer_impl.cc
index 73c1ae3f0017be483b5dcb93d8acb34b0ff6f394..80826852403e13f9b5d29dcf25356085c70bf050 100644
--- a/cc/test/fake_picture_layer_impl.cc
+++ b/cc/test/fake_picture_layer_impl.cc
@@ -97,16 +97,6 @@ PictureLayerTiling* FakePictureLayerImpl::LowResTiling() const {
   return result;
 }
 
-void FakePictureLayerImpl::SetPile(scoped_refptr<PicturePileImpl> pile) {
-  pile_.swap(pile);
-  if (tilings()) {
-    for (size_t i = 0; i < num_tilings(); ++i) {
-      tilings()->tiling_at(i)->UpdateTilesToCurrentPile(Region(),
-                                                        pile_->tiling_size());
-    }
-  }
-}
-
 void FakePictureLayerImpl::SetAllTilesVisible() {
   WhichTree tree =
       layer_tree_impl()->IsActiveTree() ? ACTIVE_TREE : PENDING_TREE;