Add InputEventTimestampSource interface.

remoting/host/input_injector.h

 // Copyright (c) 2012 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 REMOTING_HOST_INPUT_INJECTOR_H_
 #define REMOTING_HOST_INPUT_INJECTOR_H_
 
 #include <memory>
 
 #include "base/memory/ref_counted.h"
 #include "remoting/protocol/clipboard_stub.h"
+#include "remoting/protocol/input_event_timestamps.h"
 #include "remoting/protocol/input_stub.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace remoting {
 
 // TODO(sergeyu): Move ClipboardStub implementation to Clipboard.
 class InputInjector : public protocol::ClipboardStub,
@@ skipping 12 matching lines @@
   static bool SupportsTouchEvents();
 
   // Initialises any objects needed to execute events.
   virtual void Start(
       std::unique_ptr<protocol::ClipboardStub> client_clipboard) = 0;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_INPUT_INJECTOR_H_