Make calls to AtomicString(const String&) explicit in page/

Source/core/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 472 matching lines @@
 {
     switch (changeType) {
     case SettingsDelegate::StyleChange:
         setNeedsRecalcStyleInAllFrames();
         break;
     case SettingsDelegate::ViewportDescriptionChange:
         if (mainFrame())
             mainFrame()->document()->updateViewportDescription();
         break;
     case SettingsDelegate::MediaTypeChange:
-        m_mainFrame->view()->setMediaType(settings().mediaTypeOverride());
+        m_mainFrame->view()->setMediaType(AtomicString(settings().mediaTypeOverride()));
         setNeedsRecalcStyleInAllFrames();
         break;
     case SettingsDelegate::DNSPrefetchingChange:
         for (Frame* frame = mainFrame(); frame; frame = frame->tree().traverseNext())
             frame->document()->initDNSPrefetch();
         break;
     case SettingsDelegate::MultisamplingChange: {
         HashSet<MultisamplingChangedObserver*>::iterator stop = m_multisamplingChangedObservers.end();
         for (HashSet<MultisamplingChangedObserver*>::iterator it = m_multisamplingChangedObservers.begin(); it != stop; ++it)
             (*it)->multisamplingChanged(m_settings->openGLMultisamplingEnabled());
@@ skipping 43 matching lines @@
     , backForwardClient(0)
     , spellCheckerClient(0)
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 } // namespace WebCore