cc: Main thread skip single layers instead of subtrees

cc/trees/property_tree.cc

 // Copyright 2014 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 <stddef.h>
 
 #include <set>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 422 matching lines @@
 }
 
 EffectNodeData::EffectNodeData()
     : opacity(1.f),
       screen_space_opacity(1.f),
       has_render_surface(false),
       has_copy_request(false),
       has_background_filters(false),
       node_or_ancestor_has_background_filters(false),
       to_screen_opacity_is_animated(false),
+      to_screen_opacity_can_animate_on_impl(false),
       hidden_by_backface_visibility(false),
       double_sided(false),
       is_drawn(true),
       has_animated_opacity(false),
       effect_changed(false),
       num_copy_requests_in_subtree(0),
       transform_id(0),
       clip_id(0),
       target_id(0) {}
 
 EffectNodeData::EffectNodeData(const EffectNodeData& other) = default;
 
 bool EffectNodeData::operator==(const EffectNodeData& other) const {
   return opacity == other.opacity &&
          screen_space_opacity == other.screen_space_opacity &&
          has_render_surface == other.has_render_surface &&
          has_copy_request == other.has_copy_request &&
          has_background_filters == other.has_background_filters &&
          node_or_ancestor_has_background_filters ==
              other.node_or_ancestor_has_background_filters &&
          to_screen_opacity_is_animated == other.to_screen_opacity_is_animated &&
+         to_screen_opacity_can_animate_on_impl ==
+             other.to_screen_opacity_can_animate_on_impl &&
          hidden_by_backface_visibility == other.hidden_by_backface_visibility &&
          double_sided == other.double_sided && is_drawn == other.is_drawn &&
          has_animated_opacity == other.has_animated_opacity &&
          effect_changed == other.effect_changed &&
          num_copy_requests_in_subtree == other.num_copy_requests_in_subtree &&
          transform_id == other.transform_id && clip_id == other.clip_id &&
          target_id == other.target_id;
 }
 
 void EffectNodeData::ToProtobuf(proto::TreeNode* proto) const {
   DCHECK(!proto->has_effect_node_data());
   proto::EffectNodeData* data = proto->mutable_effect_node_data();
   data->set_opacity(opacity);
   data->set_screen_space_opacity(screen_space_opacity);
   data->set_has_render_surface(has_render_surface);
   data->set_has_copy_request(has_copy_request);
   data->set_has_background_filters(has_background_filters);
   data->set_node_or_ancestor_has_background_filters(
       node_or_ancestor_has_background_filters);
   data->set_to_screen_opacity_is_animated(to_screen_opacity_is_animated);
+  data->set_to_screen_opacity_can_animate_on_impl(
+      to_screen_opacity_can_animate_on_impl);
   data->set_hidden_by_backface_visibility(hidden_by_backface_visibility);
   data->set_double_sided(double_sided);
   data->set_is_drawn(is_drawn);
   data->set_has_animated_opacity(has_animated_opacity);
   data->set_effect_changed(effect_changed);
   data->set_num_copy_requests_in_subtree(num_copy_requests_in_subtree);
   data->set_transform_id(transform_id);
   data->set_clip_id(clip_id);
   data->set_target_id(target_id);
 }
 
 void EffectNodeData::FromProtobuf(const proto::TreeNode& proto) {
   DCHECK(proto.has_effect_node_data());
   const proto::EffectNodeData& data = proto.effect_node_data();
 
   opacity = data.opacity();
   screen_space_opacity = data.screen_space_opacity();
   has_render_surface = data.has_render_surface();
   has_copy_request = data.has_copy_request();
   has_background_filters = data.has_background_filters();
   node_or_ancestor_has_background_filters =
       data.node_or_ancestor_has_background_filters();
   to_screen_opacity_is_animated = data.to_screen_opacity_is_animated();
+  to_screen_opacity_can_animate_on_impl =
+      data.to_screen_opacity_can_animate_on_impl();
   hidden_by_backface_visibility = data.hidden_by_backface_visibility();
   double_sided = data.double_sided();
   is_drawn = data.is_drawn();
   has_animated_opacity = data.has_animated_opacity();
   effect_changed = data.effect_changed();
   num_copy_requests_in_subtree = data.num_copy_requests_in_subtree();
   transform_id = data.transform_id();
   clip_id = data.clip_id();
   target_id = data.target_id();
 }
@@ skipping 1400 matching lines @@
       break;
     case ALL_TREES:
       transform_tree.ResetChangeTracking();
       effect_tree.ResetChangeTracking();
   }
   changed = false;
   full_tree_damaged = false;
 }
 
 }  // namespace cc