Remove most of scoped styles.

Source/core/testing/InternalSettings.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 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.
@@ skipping 101 matching lines @@
     void setLayerSquashingEnabled(bool, ExceptionState&);
 
     // FIXME: The following are RuntimeEnabledFeatures and likely
     // cannot be changed after process start. These setters should
     // be removed or moved onto internals.runtimeFlags:
     void setAuthorShadowDOMForAnyElementEnabled(bool);
     void setCSSExclusionsEnabled(bool);
     void setExperimentalWebSocketEnabled(bool);
     void setLangAttributeAwareFormControlUIEnabled(bool);
     void setOverlayScrollbarsEnabled(bool);
-    void setStyleScopedEnabled(bool);
     void setExperimentalContentSecurityPolicyFeaturesEnabled(bool);
 
     virtual void trace(Visitor* visitor) OVERRIDE { InternalSettingsGenerated::trace(visitor); }
 
 private:
     explicit InternalSettings(Page&);
 
     Settings* settings() const;
     Page* page() const { return m_page; }
     static const char* supplementName();
 
     Page* m_page;
     Backup m_backup;
 };
 
 } // namespace WebCore
 
 #endif