cc: Rename LayerImpl::render_surface to GetRenderSurface

cc/layers/layer_iterator_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/layer_iterator.h"
 
 #include <vector>
 
 #include "base/memory/ptr_util.h"
 #include "cc/layers/layer.h"
@@ skipping 39 matching lines @@
   EXPECT_EQ(target, layer->count_representing_target_surface_);                \
   EXPECT_EQ(contrib, layer->count_representing_contributing_surface_);         \
   EXPECT_EQ(itself, layer->count_representing_itself_);
 
 void ResetCounts(LayerImplList* render_surface_layer_list) {
   for (unsigned surface_index = 0;
        surface_index < render_surface_layer_list->size();
        ++surface_index) {
     TestLayerImpl* render_surface_layer = static_cast<TestLayerImpl*>(
         render_surface_layer_list->at(surface_index));
-    RenderSurfaceImpl* render_surface = render_surface_layer->render_surface();
+    RenderSurfaceImpl* render_surface =
+        render_surface_layer->GetRenderSurface();
 
     render_surface_layer->count_representing_target_surface_ = -1;
     render_surface_layer->count_representing_contributing_surface_ = -1;
     render_surface_layer->count_representing_itself_ = -1;
 
     for (unsigned layer_index = 0;
          layer_index < render_surface->layer_list().size();
          ++layer_index) {
       TestLayerImpl* layer = static_cast<TestLayerImpl*>(
           render_surface->layer_list()[layer_index]);
@@ skipping 173 matching lines @@
   EXPECT_COUNT(root21_ptr, -1, -1, 9);
   EXPECT_COUNT(root22_ptr, 7, 8, 6);
   EXPECT_COUNT(root221_ptr, -1, -1, 5);
   EXPECT_COUNT(root23_ptr, 3, 4, 2);
   EXPECT_COUNT(root231_ptr, -1, -1, 1);
   EXPECT_COUNT(root3_ptr, -1, -1, 0);
 }
 
 }  // namespace
 }  // namespace cc