cc:: Remove RenderSurfaceImpl::TargetEffectTreeIndex

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 85 matching lines @@
 }
 
 int RenderSurfaceImpl::ClipTreeIndex() const {
   return owning_layer_->clip_tree_index();
 }
 
 int RenderSurfaceImpl::EffectTreeIndex() const {
   return owning_layer_->effect_tree_index();
 }
 
-int RenderSurfaceImpl::TargetEffectTreeIndex() const {
-  if (!owning_layer_->parent() || !owning_layer_->parent()->render_target())
-    return -1;
-  return owning_layer_->parent()->render_target()->effect_tree_index();
-}
-
 void RenderSurfaceImpl::SetClipRect(const gfx::Rect& clip_rect) {
   if (clip_rect_ == clip_rect)
     return;
 
   surface_property_changed_ = true;
   clip_rect_ = clip_rect;
 }
 
 void RenderSurfaceImpl::SetContentRect(const gfx::Rect& content_rect) {
   if (content_rect_ == content_rect)
@@ skipping 128 matching lines @@
   RenderPassDrawQuad* quad =
       render_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
   quad->SetNew(shared_quad_state, content_rect_, visible_layer_rect,
                render_pass_id, mask_resource_id, mask_uv_scale,
                mask_texture_size, owning_layer_->filters(),
                owning_layer_to_target_scale,
                owning_layer_->background_filters());
 }
 
 }  // namespace cc