Make IPC::Channel::Listener:OnMessageReceived have a return value indicating ...

ppapi/proxy/ppb_cursor_control_proxy.h

 // Copyright (c) 2010 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 PPAPI_PPB_CURSOR_CONTROL_PROXY_H_
 #define PPAPI_PPB_CURSOR_CONTROL_PROXY_H_
 
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
@@ skipping 11 matching lines @@
   PPB_CursorControl_Proxy(Dispatcher* dispatcher, const void* target_interface);
   virtual ~PPB_CursorControl_Proxy();
 
   const PPB_CursorControl_Dev* ppb_cursor_control_target() const {
     return reinterpret_cast<const PPB_CursorControl_Dev*>(target_interface());
   }
 
   // InterfaceProxy implementation.
   virtual const void* GetSourceInterface() const;
   virtual InterfaceID GetInterfaceId() const;
-  virtual void OnMessageReceived(const IPC::Message& msg);
+  virtual bool OnMessageReceived(const IPC::Message& msg);
 
  private:
   // Message handlers.
   void OnMsgSetCursor(PP_Instance instance,
                       int32_t type,
                       PP_Resource custom_image,
                       const PP_Point& hot_spot,
                       PP_Bool* result);
   void OnMsgLockCursor(PP_Instance instance,
                        PP_Bool* result);
   void OnMsgUnlockCursor(PP_Instance instance,
                          PP_Bool* result);
   void OnMsgHasCursorLock(PP_Instance instance,
                           PP_Bool* result);
   void OnMsgCanLockCursor(PP_Instance instance,
                           PP_Bool* result);
 };
 
 }  // namespace proxy
 }  // namespace pp
 
 #endif  // PPAPI_PPB_CURSOR_CONTROL_PROXY_H_