cc: Remove FinishAllRendering, as it doesn't do anything anymore.

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 655 matching lines @@
   TRACE_EVENT0("cc", "LayerTreeHost::DidLoseOutputSurface");
   DCHECK(task_runner_provider_->IsMainThread());
 
   if (output_surface_lost_)
     return;
 
   output_surface_lost_ = true;
   SetNeedsCommit();
 }
 
-void LayerTreeHost::FinishAllRendering() {
-  proxy_->FinishAllRendering();
-}
-
 void LayerTreeHost::SetDeferCommits(bool defer_commits) {
   proxy_->SetDeferCommits(defer_commits);
 }
 
 void LayerTreeHost::SetNeedsDisplayOnAllLayers() {
   for (auto* layer : *this)
     layer->SetNeedsDisplay();
 }
 
 const RendererCapabilities& LayerTreeHost::GetRendererCapabilities() const {
@@ skipping 985 matching lines @@
 
   surface_client_id_ = proto.surface_client_id();
   next_surface_sequence_ = proto.next_surface_sequence();
 }
 
 AnimationHost* LayerTreeHost::animation_host() const {
   return layer_tree_.animation_host();
 }
 
 }  // namespace cc