Minor Refator: Change signature of focusedElement

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 3570 matching lines @@
     }
 }
 
 NotificationPresenterImpl* WebViewImpl::notificationPresenterImpl()
 {
     if (!m_notificationPresenter.isInitialized() && m_client)
         m_notificationPresenter.initialize(m_client->notificationPresenter());
     return &m_notificationPresenter;
 }
 
-Element* WebViewImpl::focusedElement()
+Element* WebViewImpl::focusedElement() const
 {
     Frame* frame = m_page->focusController().focusedFrame();
     if (!frame)
         return 0;
 
     Document* document = frame->document();
     if (!document)
         return 0;
 
     return document->focusedElement();
@@ skipping 385 matching lines @@
     const PageScaleConstraints& constraints = m_pageScaleConstraintsSet.pageDefinedConstraints();
 
     if (!mainFrameImpl() || !mainFrameImpl()->frameView())
         return false;
 
     return mainFrameImpl()->frameView()->layoutSize().width() == m_size.width
         || (constraints.minimumScale == constraints.maximumScale && constraints.minimumScale != -1);
 }
 
 } // namespace blink