cc : Add OnOpacityAnimated to 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 590 matching lines @@
   node->filters = filters;
   node->effect_changed = true;
   property_trees->changed = true;
   property_trees->effect_tree.set_needs_update(true);
   SetNeedsPushProperties();
   layer_tree_impl()->set_needs_update_draw_properties();
 }
 
 void LayerImpl::OnOpacityAnimated(float opacity) {
   UpdatePropertyTreeOpacity(opacity);
-  SetNeedsPushProperties();
   layer_tree_impl()->set_needs_update_draw_properties();
   layer_tree_impl()->AddToOpacityAnimationsMap(id(), opacity);
 }
 
 void LayerImpl::OnTransformAnimated(const gfx::Transform& transform) {
   UpdatePropertyTreeTransform(transform);
   was_ever_ready_since_last_transform_animation_ = false;
   layer_tree_impl()->AddToTransformAnimationsMap(id(), transform);
 }
 
@@ skipping 574 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