Remove SendBeginFramesToChildren plumbing

cc/test/layer_tree_test.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/test/layer_tree_test.h"
 
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 353 matching lines @@
   }
 
   void RequestNewOutputSurface() override {
     test_hooks_->RequestNewOutputSurface();
   }
 
   void DidInitializeOutputSurface() override {
     test_hooks_->DidInitializeOutputSurface();
   }
 
-  void SendBeginFramesToChildren(const BeginFrameArgs& args) override {
-    test_hooks_->SendBeginFramesToChildren(args);
-  }
-
   void DidFailToInitializeOutputSurface() override {
     test_hooks_->DidFailToInitializeOutputSurface();
     RequestNewOutputSurface();
   }
 
   void WillCommit() override { test_hooks_->WillCommit(); }
 
   void DidCommit() override { test_hooks_->DidCommit(); }
 
   void DidCommitAndDrawFrame() override {
@@ skipping 648 matching lines @@
 
 RemoteChannelImplForTest* LayerTreeTest::GetRemoteChannelImplForTest() const {
   DCHECK(IsRemoteTest());
   DCHECK(remote_client_layer_tree_host_);
 
   return static_cast<RemoteChannelImplForTest*>(
       remote_client_layer_tree_host_->proxy());
 }
 
 }  // namespace cc