Add GetUsbKeyCode dev interface for Pepper key events

ppapi/cpp/input_event.cc

 // Copyright (c) 2011 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/cpp/input_event.h"
 
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/module.h"
 #include "ppapi/cpp/module_impl.h"
 #include "ppapi/cpp/point.h"
@@ skipping 177 matching lines @@
     Module::Get()->core()->AddRefResource(event.pp_resource());
     PassRefFromConstructor(event.pp_resource());
   }
 }
 
 KeyboardInputEvent::KeyboardInputEvent(Instance* instance,
                                        PP_InputEvent_Type type,
                                        PP_TimeTicks time_stamp,
                                        uint32_t modifiers,
                                        uint32_t key_code,
+                                       uint32_t usb_scan_code,
                                        const Var& character_text) {
   // Type check the input event before setting it.
   if (!has_interface<PPB_KeyboardInputEvent>())
     return;
   PassRefFromConstructor(get_interface<PPB_KeyboardInputEvent>()->Create(
       instance->pp_instance(), type, time_stamp, modifiers, key_code,
-      character_text.pp_var()));
+      usb_scan_code, character_text.pp_var()));
 }
 
 uint32_t KeyboardInputEvent::GetKeyCode() const {
   if (!has_interface<PPB_KeyboardInputEvent>())
     return 0;
   return get_interface<PPB_KeyboardInputEvent>()->GetKeyCode(pp_resource());
 }
 
+uint32_t KeyboardInputEvent::GetUsbScanCode_Dev() const {
+  if (!has_interface<PPB_KeyboardInputEvent>())
+    return 0;
+  return get_interface<PPB_KeyboardInputEvent>()->GetUsbScanCode_Dev(
+      pp_resource());
+}
+
 Var KeyboardInputEvent::GetCharacterText() const {
   if (!has_interface<PPB_KeyboardInputEvent>())
     return Var();
   return Var(Var::PassRef(),
              get_interface<PPB_KeyboardInputEvent>()->GetCharacterText(
                  pp_resource()));
 }
 
 }  // namespace pp