cc: Remove use of PassAs() and constructor-casting with scoped_ptr.

cc/layers/picture_image_layer_impl_unittest.cc

Index: cc/layers/picture_image_layer_impl_unittest.cc
diff --git a/cc/layers/picture_image_layer_impl_unittest.cc b/cc/layers/picture_image_layer_impl_unittest.cc
index 06f53efcf2501147e0695b74f689b6d3b1773ac8..3f1d36ce766c13f73f5a208e954d3aa0d6c36713 100644
--- a/cc/layers/picture_image_layer_impl_unittest.cc
+++ b/cc/layers/picture_image_layer_impl_unittest.cc
@@ -43,8 +43,7 @@ class PictureImageLayerImplTest : public testing::Test {
                    &shared_bitmap_manager_) {
     tiling_client_.SetTileSize(ImplSidePaintingSettings().default_tile_size);
     host_impl_.CreatePendingTree();
-    host_impl_.InitializeRenderer(
-        FakeOutputSurface::Create3d().PassAs<OutputSurface>());
+    host_impl_.InitializeRenderer(FakeOutputSurface::Create3d());
   }
 
   scoped_ptr<TestablePictureImageLayerImpl> CreateLayer(int id,
@@ -126,7 +125,7 @@ TEST_F(PictureImageLayerImplTest, IgnoreIdealContentScale) {
   EXPECT_EQ(1.f, pending_layer->tilings()->tiling_at(0)->contents_scale());
 
   // Push to active layer.
-  host_impl_.pending_tree()->SetRootLayer(pending_layer.PassAs<LayerImpl>());
+  host_impl_.pending_tree()->SetRootLayer(pending_layer.Pass());
   host_impl_.ActivateSyncTree();
   TestablePictureImageLayerImpl* active_layer =
       static_cast<TestablePictureImageLayerImpl*>(