cc: Remove unused proto conversion code.

cc/test/fake_remote_compositor_bridge.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_FAKE_REMOTE_COMPOSITOR_BRIDGE_H_
 #define CC_TEST_FAKE_REMOTE_COMPOSITOR_BRIDGE_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 11 matching lines @@
   FakeRemoteCompositorBridge(
       scoped_refptr<base::SingleThreadTaskRunner> compositor_main_task_runner);
   ~FakeRemoteCompositorBridge() override;
 
   // RemoteCompositorBridge implementation.
   void BindToClient(RemoteCompositorBridgeClient* client) override;
   void ScheduleMainFrame() override;
   void ProcessCompositorStateUpdate(
       std::unique_ptr<CompositorProtoState> compositor_proto_state) override {}
 
+  bool has_pending_update() const { return has_pending_update_; }
+
  protected:
   void BeginMainFrame();
 
   RemoteCompositorBridgeClient* client_;
+
+ private:
+  bool has_pending_update_ = false;
   base::WeakPtrFactory<FakeRemoteCompositorBridge> weak_factory_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_REMOTE_COMPOSITOR_BRIDGE_H_