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

cc/trees/proxy_impl.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_impl.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 186 matching lines @@
 
   if (CommitEarlyOutHandledCommit(reason)) {
     SetInputThrottledUntilCommitOnImpl(false);
   }
   layer_tree_host_impl_->BeginMainFrameAborted(reason,
                                                std::move(swap_promises));
   scheduler_->NotifyBeginMainFrameStarted(main_thread_start_time);
   scheduler_->BeginMainFrameAborted(reason);
 }
 
-void ProxyImpl::FinishAllRenderingOnImpl(CompletionEvent* completion) {
-  TRACE_EVENT0("cc", "ProxyImpl::FinishAllRenderingOnImplThread");
-  DCHECK(IsImplThread());
-  layer_tree_host_impl_->FinishAllRendering();
-  completion->Signal();
-}
-
 void ProxyImpl::SetVisibleOnImpl(bool visible) {
   TRACE_EVENT1("cc", "ProxyImpl::SetVisibleOnImplThread", "visible", visible);
   DCHECK(IsImplThread());
   layer_tree_host_impl_->SetVisible(visible);
   scheduler_->SetVisible(visible);
 }
 
 void ProxyImpl::ReleaseOutputSurfaceOnImpl(CompletionEvent* completion) {
   DCHECK(IsImplThread());
 
@@ skipping 442 matching lines @@
 bool ProxyImpl::IsMainThreadBlocked() const {
   return task_runner_provider_->IsMainThreadBlocked();
 }
 
 ProxyImpl::BlockedMainCommitOnly& ProxyImpl::blocked_main_commit() {
   DCHECK(IsMainThreadBlocked() && commit_completion_event_);
   return main_thread_blocked_commit_vars_unsafe_;
 }
 
 }  // namespace cc