Surface Synchronization: Distinguish between dependencies and references

cc/trees/layer_tree_host.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/trees/layer_tree_host.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 345 matching lines @@
 }
 
 void LayerTreeHost::WillCommit() {
   swap_promise_manager_.WillCommit();
   client_->WillCommit();
 }
 
 
 void LayerTreeHost::UpdateDeferCommitsInternal() {
   proxy_->SetDeferCommits(defer_commits_ ||
-                          (settings_.needs_valid_local_surface_id &&
+                          (settings_.enable_surface_synchronization &&
                            !local_surface_id_.is_valid()));
 }
 
 void LayerTreeHost::CommitComplete() {
   source_frame_number_++;
   client_->DidCommit();
   if (did_complete_scale_animation_) {
     client_->DidCompletePageScaleAnimation();
     did_complete_scale_animation_ = false;
   }
@@ skipping 1058 matching lines @@
 LayerListReverseIterator<Layer> LayerTreeHost::rend() {
   return LayerListReverseIterator<Layer>(nullptr);
 }
 
 void LayerTreeHost::SetNeedsDisplayOnAllLayers() {
   for (auto* layer : *this)
     layer->SetNeedsDisplay();
 }
 
 }  // namespace cc