cc: Consolidate LayerList types.

cc/layers/contents_scaling_layer_unittest.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/layers/contents_scaling_layer.h"
 
 #include <vector>
 
 #include "cc/test/geometry_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 29 matching lines @@
         &draw_properties().content_bounds);
   }
 
  private:
   virtual ~MockContentsScalingLayer() {}
 
   gfx::RectF last_needs_display_rect_;
 };
 
 void CalcDrawProps(Layer* root, float device_scale) {
-  std::vector<scoped_refptr<Layer> > render_surface_layer_list;
+  LayerList render_surface_layer_list;
   LayerTreeHostCommon::CalculateDrawProperties(
       root,
       gfx::Size(500, 500),
       device_scale,
       1.f,
       1024,
       false,
       &render_surface_layer_list);
 }
 
@@ skipping 20 matching lines @@
   EXPECT_EQ(20, test_layer->content_bounds().width());
   EXPECT_EQ(40, test_layer->content_bounds().height());
 
   CalcDrawProps(root, 1.33f);
   EXPECT_EQ(14, test_layer->content_bounds().width());
   EXPECT_EQ(27, test_layer->content_bounds().height());
 }
 
 }  // namespace
 }  // namespace cc