cc: Break up with FakeLayerTreeHostClient.

cc/test/stub_layer_tree_host_single_thread_client.h

+// Copyright 2016 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.
+
+#ifndef CC_TEST_STUB_LAYER_TREE_HOST_SINGLE_THREAD_CLIENT_H_
+#define CC_TEST_STUB_LAYER_TREE_HOST_SINGLE_THREAD_CLIENT_H_
+
+#include "cc/trees/layer_tree_host_single_thread_client.h"
+
+namespace cc {
+
+class StubLayerTreeHostSingleThreadClient
+    : public LayerTreeHostSingleThreadClient {
+ public:
+  ~StubLayerTreeHostSingleThreadClient() override;
+
+  // LayerTreeHostSingleThreadClient implementation.
+  void RequestScheduleComposite() override {}
+  void RequestScheduleAnimation() override {}
+  void DidPostSwapBuffers() override {}
+  void DidCompleteSwapBuffers() override {}
+  void DidAbortSwapBuffers() override {}
+};
+
+}  // namespace cc
+
+#endif  // CC_TEST_STUB_LAYER_TREE_HOST_SINGLE_THREAD_CLIENT_H_