Move MediaQueryEvaluator from StyleResolver to StyleEngine.

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 1424 matching lines @@
   if (mode == m_displayMode)
     return;
 
   m_displayMode = mode;
 
   if (m_frame->document())
     m_frame->document()->mediaQueryAffectingValueChanged();
 }
 
 void FrameView::setMediaType(const AtomicString& mediaType) {
-  ASSERT(m_frame->document());
+  DCHECK(m_frame->document());
+  m_mediaType = mediaType;
   m_frame->document()->mediaQueryAffectingValueChanged();
-  m_mediaType = mediaType;
 }
 
 AtomicString FrameView::mediaType() const {
   // See if we have an override type.
   if (m_frame->settings() &&
       !m_frame->settings()->mediaTypeOverride().isEmpty())
     return AtomicString(m_frame->settings()->mediaTypeOverride());
   return m_mediaType;
 }
 
@@ skipping 3189 matching lines @@
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.width();
 }
 
 int FrameView::initialViewportHeight() const {
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.height();
 }
 
 }  // namespace blink