Release all keys on blur.

remoting/client/input_handler.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 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.
 
 #ifndef REMOTING_CLIENT_INPUT_HANDLER_H_
 #define REMOTING_CLIENT_INPUT_HANDLER_H_
 
+#include <set>
+
 #include "base/basictypes.h"
 #include "base/task.h"
 #include "remoting/proto/event.pb.h"
 
 namespace remoting {
 
 class ClientContext;
 class ChromotingView;
 
 namespace protocol {
 class ConnectionToHost;
 }  // namespace protocol
 
 class InputHandler {
  public:
   InputHandler(ClientContext* context,
                protocol::ConnectionToHost* connection,
                ChromotingView* view);
-  virtual ~InputHandler() {}
+  virtual ~InputHandler();
 
   virtual void Initialize() = 0;
 
+  void ReleaseAllKeys();
+
  protected:
   void SendKeyEvent(bool press, int keycode);
   void SendMouseMoveEvent(int x, int y);
   void SendMouseButtonEvent(bool down,
                             protocol::MouseEvent::MouseButton button);
 
   ClientContext* context_;
   protocol::ConnectionToHost* connection_;
   ChromotingView* view_;
 
  private:
+  std::set<int> pressed_keys_;
+
   DISALLOW_COPY_AND_ASSIGN(InputHandler);
 };
 
 }  // namespace remoting
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(remoting::InputHandler);
 
 #endif  // REMOTING_CLIENT_INPUT_HANDLER_H_