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

cc/trees/proxy_main.cc

 // Copyright 2015 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/proxy_main.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/trace_event/trace_event.h"
@@ skipping 242 matching lines @@
                                              begin_main_frame_start_time,
                                              hold_commit_for_activation);
     completion.Wait();
   }
 
   current_pipeline_stage_ = NO_PIPELINE_STAGE;
   layer_tree_host_->CommitComplete();
   layer_tree_host_->DidBeginMainFrame();
 }
 
-void ProxyMain::FinishAllRendering() {
-  DCHECK(IsMainThread());
-  DCHECK(!defer_commits_);
-
-  // Make sure all GL drawing is finished on the impl thread.
-  DebugScopedSetMainThreadBlocked main_thread_blocked(task_runner_provider_);
-  CompletionEvent completion;
-  channel_main_->FinishAllRenderingOnImpl(&completion);
-  completion.Wait();
-}
-
 bool ProxyMain::IsStarted() const {
   DCHECK(IsMainThread());
   return started_;
 }
 
 bool ProxyMain::CommitToActiveTree() const {
   // With ProxyMain, we use a pending tree and activate it once it's ready to
   // draw to allow input to modify the active tree and draw during raster.
   return false;
 }
@@ skipping 175 matching lines @@
     return false;
   channel_main_->SetNeedsCommitOnImpl();
   return true;
 }
 
 bool ProxyMain::IsMainThread() const {
   return task_runner_provider_->IsMainThread();
 }
 
 }  // namespace cc