Add GetUsbKeyCode dev interface for Pepper key events

webkit/plugins/ppapi/event_conversion.cc

-// 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.
 
 #include "webkit/plugins/ppapi/event_conversion.h"
 
 #include "base/basictypes.h"
 #include "base/i18n/char_iterator.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_util.h"
@@ skipping 62 matching lines @@
   return result;
 }
 
 void AppendKeyEvent(const WebInputEvent& event,
                     std::vector<InputEventData>* result_events) {
   const WebKeyboardEvent& key_event =
       static_cast<const WebKeyboardEvent&>(event);
   InputEventData result = GetEventWithCommonFieldsAndType(event);
   result.event_modifiers = key_event.modifiers;
   result.key_code = key_event.windowsKeyCode;
+  // TODO(garykac): Platform-specific code to convert from
+  // |key_event.nativeKeyCode| to USB key code.
+  result.usb_key_code = 0;
   result_events->push_back(result);
 }
 
 void AppendCharEvent(const WebInputEvent& event,
                      std::vector<InputEventData>* result_events) {
   const WebKeyboardEvent& key_event =
       static_cast<const WebKeyboardEvent&>(event);
 
   // This is a bit complex, the input event will normally just have one 16-bit
   // character in it, but may be zero or more than one. The text array is
@@ skipping 421 matching lines @@
       return PP_INPUTEVENT_CLASS_KEYBOARD;
     case WebInputEvent::Undefined:
     default:
       NOTREACHED();
       return PP_InputEvent_Class(0);
   }
 }
 
 }  // namespace ppapi
 }  // namespace webkit