Move code from StyleResolver to ViewportStyleResolver.

Source/web/WebSettingsImpl.cpp

 /*
  * Copyright (C) 2009 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 745 matching lines @@
 void WebSettingsImpl::setMainFrameResizesAreOrientationChanges(bool enabled)
 {
     m_mainFrameResizesAreOrientationChanges = enabled;
 }
 
 void WebSettingsImpl::setV8CacheOptions(V8CacheOptions options)
 {
     m_settings->setV8CacheOptions(static_cast<blink::V8CacheOptions>(options));
 }
 
+void WebSettingsImpl::setUseMobileViewportStyle(bool enabled)
+{
+    if (m_devToolsAgent)
+        m_devToolsAgent->setUseMobileViewportStyle(enabled);
+    else
+        m_settings->setUseMobileViewportStyle(enabled);
+}
+
 } // namespace blink