Add viewport settings for ImageDocument and MediaDocument

Source/core/html/MediaDocument.cpp

 /*
  * Copyright (C) 2008 Apple 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 58 matching lines @@
     
 void MediaDocumentParser::createDocumentStructure()
 {
     RefPtr<Element> rootElement = document()->createElement(htmlTag, false);
     document()->appendChild(rootElement, IGNORE_EXCEPTION);
     document()->setCSSTarget(rootElement.get());
     static_cast<HTMLHtmlElement*>(rootElement.get())->insertedByParser();
 
     if (document()->frame())
         document()->frame()->loader()->dispatchDocumentElementAvailable();
-        
+
+    RefPtr<Element> head = document()->createElement(headTag, false);
+    rootElement->appendChild(head, IGNORE_EXCEPTION);
+
+    RefPtr<Element> meta = document()->createElement(metaTag, false);
+    meta->setAttribute(nameAttr, "viewport");
+    meta->setAttribute(contentAttr, "width=device-width");
+    head->appendChild(meta, IGNORE_EXCEPTION);
+
     RefPtr<Element> body = document()->createElement(bodyTag, false);
     rootElement->appendChild(body, IGNORE_EXCEPTION);
 
     RefPtr<Element> mediaElement = document()->createElement(videoTag, false);
 
     m_mediaElement = static_cast<HTMLVideoElement*>(mediaElement.get());
     m_mediaElement->setAttribute(controlsAttr, "");
     m_mediaElement->setAttribute(autoplayAttr, "");
 
     m_mediaElement->setAttribute(nameAttr, "media");
@@ skipping 66 matching lines @@
                 if (video->canPlay())
                     video->play();
             } else
                 video->pause();
             event->setDefaultHandled();
         }
     }
 }
 
 }