Add GetUsbKeyCode dev interface for Pepper key events

ppapi/native_client/src/shared/ppapi_proxy/trusted/srpcgen/ppb_rpc.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.
 //
 // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
 //
 // Automatically generated code.  See srpcgen.py
 //
 // NaCl Simple Remote Procedure Call interface abstractions.
 
@@ skipping 728 matching lines @@
       int32_t scroll_by_page,
       PP_Resource* resource_id);
   static void PPB_InputEvent_CreateKeyboardInputEvent(
       NaClSrpcRpc* rpc,
       NaClSrpcClosure* done,
       PP_Instance instance,
       int32_t type,
       double time_stamp,
       int32_t modifiers,
       int32_t key_code,
+      int32_t usb_scan_code,
       nacl_abi_size_t character_text_bytes, char* character_text,
       PP_Resource* resource_id);
 
  private:
   PpbInputEventRpcServer();
   PpbInputEventRpcServer(const PpbInputEventRpcServer&);
   void operator=(const PpbInputEventRpcServer);
 };  // class PpbInputEventRpcServer
 
 class PpbInstanceRpcServer {
@@ skipping 669 matching lines @@
 };  // class PpbZoomRpcServer
 
 class PpbRpcs {
  public:
   static NaClSrpcHandlerDesc srpc_methods[];
 };  // class PpbRpcs
 
 
 #endif  // GEN_PPAPI_PROXY_PPB_RPC_H_