[NOT LANDED] Revert of cc: Split ThreadProxy into ProxyMain and ProxyImpl

cc/test/threaded_channel_for_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/threaded_channel_for_test.h"
-
-#include "cc/test/proxy_impl_for_test.h"
-
-namespace cc {
-
-scoped_ptr<ThreadedChannel> ThreadedChannelForTest::Create(
-    TestHooks* test_hooks,
-    ProxyMain* proxy_main,
-    TaskRunnerProvider* task_runner_provider) {
-  return make_scoped_ptr(
-      new ThreadedChannelForTest(test_hooks, proxy_main, task_runner_provider));
-}
-
-ThreadedChannelForTest::ThreadedChannelForTest(
-    TestHooks* test_hooks,
-    ProxyMain* proxy_main,
-    TaskRunnerProvider* task_runner_provider)
-    : ThreadedChannel(proxy_main, task_runner_provider),
-      test_hooks_(test_hooks) {}
-
-scoped_ptr<ProxyImpl> ThreadedChannelForTest::CreateProxyImpl(
-    ChannelImpl* channel_impl,
-    LayerTreeHost* layer_tree_host,
-    TaskRunnerProvider* task_runner_provider,
-    scoped_ptr<BeginFrameSource> external_begin_frame_source) {
-  return ProxyImplForTest::Create(test_hooks_, channel_impl, layer_tree_host,
-                                  task_runner_provider,
-                                  std::move(external_begin_frame_source));
-}
-
-}  // namespace cc