cc: Move background filters to the effect tree

cc/layers/layer_impl.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_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 329 matching lines @@
   layer->safe_opaque_background_color_ = safe_opaque_background_color_;
   layer->blend_mode_ = blend_mode_;
   layer->draw_blend_mode_ = draw_blend_mode_;
   layer->position_ = position_;
   layer->transform_ = transform_;
   layer->transform_tree_index_ = transform_tree_index_;
   layer->effect_tree_index_ = effect_tree_index_;
   layer->clip_tree_index_ = clip_tree_index_;
   layer->scroll_tree_index_ = scroll_tree_index_;
   layer->filters_ = filters_;
-  layer->background_filters_ = background_filters_;
   layer->sorting_context_id_ = sorting_context_id_;
   layer->has_will_change_transform_hint_ = has_will_change_transform_hint_;
 
   if (layer_property_changed_) {
     layer->layer_tree_impl()->set_needs_update_draw_properties();
     layer->layer_property_changed_ = true;
   }
 
   // If whether layer has render surface changes, we need to update draw
   // properties.
@@ skipping 438 matching lines @@
 }
 
 bool LayerImpl::FilterIsAnimating() const {
   return layer_tree_impl_->IsAnimatingFilterProperty(this);
 }
 
 bool LayerImpl::HasPotentiallyRunningFilterAnimation() const {
   return layer_tree_impl_->HasPotentiallyRunningFilterAnimation(this);
 }
 
-void LayerImpl::SetBackgroundFilters(
-    const FilterOperations& filters) {
-  if (background_filters_ == filters)
-    return;
-
-  background_filters_ = filters;
-  NoteLayerPropertyChanged();
-}
-
 void LayerImpl::SetMasksToBounds(bool masks_to_bounds) {
   if (masks_to_bounds_ == masks_to_bounds)
     return;
 
   masks_to_bounds_ = masks_to_bounds;
 }
 
 void LayerImpl::SetContentsOpaque(bool opaque) {
   if (contents_opaque_ == opaque)
     return;
@@ skipping 420 matching lines @@
            .layer_transforms_should_scale_layer_contents) {
     return default_scale;
   }
 
   gfx::Vector2dF transform_scales = MathUtil::ComputeTransform2dScaleComponents(
       ScreenSpaceTransform(), default_scale);
   return std::max(transform_scales.x(), transform_scales.y());
 }
 
 }  // namespace cc