Add mouse/keyboard event support to Chromoting client (Pepper and X11).

remoting/client/plugin/pepper_input_handler.h

Index: remoting/client/plugin/pepper_input_handler.h
diff --git a/remoting/client/plugin/pepper_input_handler.h b/remoting/client/plugin/pepper_input_handler.h
index 385cb8a9f1e8c73da1c2b4a0aaabfa107c37743e..dd2a76e9690081f26d8f80d7f2781b462ca98b9b 100644
--- a/remoting/client/plugin/pepper_input_handler.h
+++ b/remoting/client/plugin/pepper_input_handler.h
@@ -20,6 +20,9 @@ class PepperInputHandler : public InputHandler {
 
   void Initialize();
 
+  void HandleKeyEvent(bool keydown, const PP_Event_Key& event);
+  void HandleCharacterEvent(const PP_Event_Character& event);
+
   void HandleMouseMoveEvent(const PP_Event_Mouse& event);
   void HandleMouseButtonEvent(bool button_down,
                               const PP_Event_Mouse& event);