Add GetUsbKeyCode dev interface for Pepper key events

ppapi/proxy/resource_creation_proxy.cc

 // 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.
 
 #include "ppapi/proxy/resource_creation_proxy.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/trusted/ppb_image_data_trusted.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
@@ skipping 169 matching lines @@
   return PPB_ImageData_Proxy::CreateProxyResource(instance, format, size,
                                                   init_to_zero);
 }
 
 PP_Resource ResourceCreationProxy::CreateKeyboardInputEvent(
     PP_Instance instance,
     PP_InputEvent_Type type,
     PP_TimeTicks time_stamp,
     uint32_t modifiers,
     uint32_t key_code,
+    uint32_t usb_scan_code,
     struct PP_Var character_text) {
   if (type != PP_INPUTEVENT_TYPE_RAWKEYDOWN &&
       type != PP_INPUTEVENT_TYPE_KEYDOWN &&
       type != PP_INPUTEVENT_TYPE_KEYUP &&
       type != PP_INPUTEVENT_TYPE_CHAR)
     return 0;
   InputEventData data;
   data.event_type = type;
   data.event_time_stamp = time_stamp;
   data.event_modifiers = modifiers;
   data.key_code = key_code;
+  data.usb_scan_code = usb_scan_code;
   if (character_text.type == PP_VARTYPE_STRING) {
     StringVar* text_str = StringVar::FromPPVar(character_text);
     if (!text_str)
       return 0;
     data.character_text = text_str->value();
   }
 
   return (new PPB_InputEvent_Shared(PPB_InputEvent_Shared::InitAsProxy(),
                                     instance, data))->GetReference();
 }
@@ skipping 133 matching lines @@
 bool ResourceCreationProxy::Send(IPC::Message* msg) {
   return dispatcher()->Send(msg);
 }
 
 bool ResourceCreationProxy::OnMessageReceived(const IPC::Message& msg) {
   return false;
 }
 
 }  // namespace proxy
 }  // namespace ppapi