Mac: Send a synthetic mouseup event when <select> popup menu is opened.

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 850 matching lines @@
 }
 
 bool ChromeClientImpl::hasOpenedPopup() const
 {
     return m_webView->hasOpenedPopup();
 }
 
 PassRefPtr<PopupMenu> ChromeClientImpl::createPopupMenu(Frame& frame, PopupMenuClient* client) const
 {
     if (WebViewImpl::useExternalPopupMenus())
-        return adoptRef(new ExternalPopupMenu(frame, client, m_webView->client()));
+        return adoptRef(new ExternalPopupMenu(frame, client, *m_webView));
 
     return adoptRef(new PopupMenuChromium(frame, client));
 }
 
 PagePopup* ChromeClientImpl::openPagePopup(PagePopupClient* client, const IntRect& originBoundsInRootView)
 {
     ASSERT(m_pagePopupDriver);
     return m_pagePopupDriver->openPagePopup(client, originBoundsInRootView);
 }
 
@@ skipping 166 matching lines @@
 {
 }
 
 void NavigatorContentUtilsClientImpl::registerProtocolHandler(const String& scheme, const String& baseURL, const String& url, const String& title)
 {
     m_webView->client()->registerProtocolHandler(scheme, baseURL, url, title);
 }
 #endif
 
 } // namespace blink