Remove CSS Exclusions leftovers

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 37 matching lines @@
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(InternalSettings);
 #else
 class InternalSettings FINAL : public InternalSettingsGenerated {
 #endif
 public:
     class Backup {
     public:
         explicit Backup(Settings*);
         void restoreTo(Settings*);
 
-        bool m_originalCSSExclusionsEnabled;
         bool m_originalAuthorShadowDOMForAnyElementEnabled;
         bool m_originalCSP;
         bool m_originalLaxMixedContentCheckingEnabled;
         bool m_originalOverlayScrollbarsEnabled;
         EditingBehaviorType m_originalEditingBehavior;
         bool m_originalTextAutosizingEnabled;
         IntSize m_originalTextAutosizingWindowSizeOverride;
         float m_originalAccessibilityFontScaleFactor;
         String m_originalMediaTypeOverride;
         bool m_originalMockScrollbarsEnabled;
@@ skipping 36 matching lines @@
     void setViewportEnabled(bool, ExceptionState&);
 
     // FIXME: This is a temporary flag and should be removed once squashing is
     // ready (crbug.com/261605).
     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 setLangAttributeAwareFormControlUIEnabled(bool);
     void setOverlayScrollbarsEnabled(bool);
     void setExperimentalContentSecurityPolicyFeaturesEnabled(bool);
     void setPseudoClassesInMatchingCriteriaInAuthorShadowTreesEnabled(bool);
     void setLaxMixedContentCheckingEnabled(bool);
 
     virtual void trace(Visitor*) OVERRIDE;
 
 private:
     explicit InternalSettings(Page&);
 
     Settings* settings() const;
     Page* page() const { return m_page; }
     static const char* supplementName();
 
     RawPtrWillBeWeakMember<Page> m_page;
     Backup m_backup;
 };
 
 } // namespace WebCore
 
 #endif