Refactoring button field and its type (2nd try)

third_party/WebKit/Source/web/ChromeClientImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 265 matching lines @@
 {
     if (!inputEvent)
         return;
 
     unsigned short buttonNumber = 0;
     if (inputEvent->type == WebInputEvent::MouseUp) {
 
         const WebMouseEvent* mouseEvent = static_cast<const WebMouseEvent*>(inputEvent);
 
         switch (mouseEvent->button) {
-        case WebMouseEvent::ButtonLeft:
+        case WebMouseEvent::Button::Left:
             buttonNumber = 0;
             break;
-        case WebMouseEvent::ButtonMiddle:
+        case WebMouseEvent::Button::Middle:
             buttonNumber = 1;
             break;
-        case WebMouseEvent::ButtonRight:
+        case WebMouseEvent::Button::Right:
             buttonNumber = 2;
             break;
         default:
             return;
         }
     } else if ((WebInputEvent::isKeyboardEventType(inputEvent->type) && static_cast<const WebKeyboardEvent*>(inputEvent)->windowsKeyCode == VKEY_RETURN) || WebInputEvent::isGestureEventType(inputEvent->type)) {
         // Keyboard and gesture events can simulate mouse events.
         buttonNumber = 0;
     } else {
         return;
@@ skipping 791 matching lines @@
 {
     return wrapUnique(m_webView->scheduler()->createFrameScheduler(blameContext).release());
 }
 
 double ChromeClientImpl::lastFrameTimeMonotonic() const
 {
     return m_webView->lastFrameTimeMonotonic();
 }
 
 } // namespace blink