Remove implicit conversions from scoped_refptr to T* in cc/trees/

cc/trees/layer_tree_host_unittest_animation.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include "cc/animation/animation_curve.h"
 #include "cc/animation/layer_animation_controller.h"
 #include "cc/animation/scroll_offset_animation_curve.h"
 #include "cc/animation/timing_function.h"
@@ skipping 1146 matching lines @@
     if (layer_tree_host()->source_frame_number() == 1) {
       AddAnimatedTransformToLayer(layer_tree_host()->root_layer(), 4, 1, 1);
     } else if (layer_tree_host()->source_frame_number() == 2) {
       AddOpacityTransitionToLayer(
           layer_tree_host()->root_layer(), 1, 0.f, 0.5f, true);
 
       scoped_refptr<Layer> layer = Layer::Create();
       layer_tree_host()->root_layer()->AddChild(layer);
       layer->set_layer_animation_delegate(this);
       layer->SetBounds(gfx::Size(4, 4));
-      AddOpacityTransitionToLayer(layer, 1, 0.f, 0.5f, true);
+      AddOpacityTransitionToLayer(layer.get(), 1, 0.f, 0.5f, true);
     }
   }
 
   virtual void BeginCommitOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
     host_impl->BlockNotifyReadyToActivateForTesting(true);
   }
 
   virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
     // For the commit that added animations to new and existing layers, keep
     // blocking activation. We want to verify that even with activation blocked,
@@ skipping 106 matching lines @@
  private:
   scoped_refptr<Layer> content_;
   int num_swap_buffers_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(
     LayerTreeHostAnimationTestAddAnimationAfterAnimating);
 
 }  // namespace
 }  // namespace cc