Translate viewport related meta tags into @viewport descriptors as suggested by the CSS Device Adap…

Source/core/page/DOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 337 matching lines @@
         return;
 
     m_document->setDOMWindow(this);
     if (!m_document->attached())
         m_document->attach();
 
     if (!m_frame)
         return;
 
     m_frame->script()->updateDocument();
-    m_document->updateViewportArguments();
+    m_document->styleResolver()->viewportStyleResolver()->resolve();
 
     if (m_frame->page() && m_frame->view()) {
         if (ScrollingCoordinator* scrollingCoordinator = m_frame->page()->scrollingCoordinator()) {
             scrollingCoordinator->scrollableAreaScrollbarLayerDidChange(m_frame->view(), HorizontalScrollbar);
             scrollingCoordinator->scrollableAreaScrollbarLayerDidChange(m_frame->view(), VerticalScrollbar);
             scrollingCoordinator->scrollableAreaScrollLayerDidChange(m_frame->view());
         }
     }
 
     m_frame->selection()->updateSecureKeyboardEntryIfActive();
@@ skipping 1593 matching lines @@
 
     Frame* child = frame->tree()->scopedChild(index);
     if (child)
         return child->document()->domWindow();
 
     return 0;
 }
 
 
 } // namespace WebCore