Convert //cc from scoped_ptr to std::unique_ptr.

cc/layers/layer_perftest.cc

 // Copyright 2013 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/layers/layer.h"
 
 #include "base/thread_task_runner_handle.h"
 #include "cc/debug/lap_timer.h"
 #include "cc/test/fake_impl_task_runner_provider.h"
 #include "cc/test/fake_layer_tree_host.h"
@@ skipping 33 matching lines @@
     layer_tree_host_->SetRootLayer(nullptr);
     layer_tree_host_ = nullptr;
   }
 
   FakeImplTaskRunnerProvider task_runner_provider_;
   TestSharedBitmapManager shared_bitmap_manager_;
   TestTaskGraphRunner task_graph_runner_;
   FakeLayerTreeHostImpl host_impl_;
 
   FakeLayerTreeHostClient fake_client_;
-  scoped_ptr<FakeLayerTreeHost> layer_tree_host_;
+  std::unique_ptr<FakeLayerTreeHost> layer_tree_host_;
   LapTimer timer_;
 };
 
 TEST_F(LayerPerfTest, PushPropertiesTo) {
   scoped_refptr<Layer> test_layer = Layer::Create();
-  scoped_ptr<LayerImpl> impl_layer =
+  std::unique_ptr<LayerImpl> impl_layer =
       LayerImpl::Create(host_impl_.active_tree(), 1);
 
   layer_tree_host_->SetRootLayer(test_layer);
 
   float transform_origin_z = 0;
   bool scrollable = true;
   bool contents_opaque = true;
   bool double_sided = true;
   bool hide_layer_and_subtree = true;
   bool masks_to_bounds = true;
@@ skipping 39 matching lines @@
                          "",
                          "props_didnt_change",
                          timer_.LapsPerSecond(),
                          "runs/s",
                          true);
 }
 
 
 }  // namespace
 }  // namespace cc