Replace three callsites to LayerImpl::GetRenderSurface with effect tree calls.

cc/layers/render_surface_impl.cc

 // Copyright 2011 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/render_surface_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 323 matching lines @@
   return ancestor_property_changed_ || property_trees->full_tree_damaged ||
          property_trees->transform_tree.Node(TransformTreeIndex())
              ->transform_changed ||
          property_trees->effect_tree.Node(EffectTreeIndex())->effect_changed;
 }
 
 void RenderSurfaceImpl::NoteAncestorPropertyChanged() {
   ancestor_property_changed_ = true;
 }
 
-gfx::Rect RenderSurfaceImpl::GetDamageRect() {
+gfx::Rect RenderSurfaceImpl::GetDamageRect() const {
   gfx::Rect damage_rect;
   bool is_valid_rect = damage_tracker_->GetDamageRectIfValid(&damage_rect);
   if (!is_valid_rect)
     return content_rect();
   return damage_rect;
 }
 
 void RenderSurfaceImpl::ResetPropertyChangedFlags() {
   surface_property_changed_ = false;
   ancestor_property_changed_ = false;
@@ skipping 184 matching lines @@
         NOTIMPLEMENTED();
         break;
       default:
         NOTREACHED();
         break;
     }
   }
 }
 
 }  // namespace cc