Add GetUsbKeyCode dev interface for Pepper key events

ppapi/thunk/ppb_input_event_api.h

Index: ppapi/thunk/ppb_input_event_api.h
diff --git a/ppapi/thunk/ppb_input_event_api.h b/ppapi/thunk/ppb_input_event_api.h
index f23c7959738fa1adeced5bfbac788d0a1c5ebac5..eda6b8e981ff55396fef587ed4143227af101100 100644
--- a/ppapi/thunk/ppb_input_event_api.h
+++ b/ppapi/thunk/ppb_input_event_api.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -6,6 +6,7 @@
 #define PPAPI_THUNK_PPB_INPUT_EVENT_API_H_
 
 #include "ppapi/c/dev/ppb_ime_input_event_dev.h"
+#include "ppapi/c/dev/ppb_keyboard_input_event_dev.h"
 #include "ppapi/c/ppb_input_event.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
@@ -35,6 +36,8 @@ class PPAPI_THUNK_EXPORT PPB_InputEvent_API {
   virtual PP_Bool GetWheelScrollByPage() = 0;
   virtual uint32_t GetKeyCode() = 0;
   virtual PP_Var GetCharacterText() = 0;
+  virtual PP_Bool SetUsbKeyCode(uint32_t) = 0;
+  virtual uint32_t GetUsbKeyCode() = 0;
   virtual uint32_t GetIMESegmentNumber() = 0;
   virtual uint32_t GetIMESegmentOffset(uint32_t index) = 0;
   virtual int32_t GetIMETargetSegment() = 0;