Remove the MSAA WebSetting, which is not read or used.

third_party/WebKit/Source/core/frame/Settings.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 49 matching lines @@
     // Only set by Layout Tests, and only used if textAutosizingEnabled() returns true.
     void setTextAutosizingWindowSizeOverride(const IntSize&);
     const IntSize& textAutosizingWindowSizeOverride() const { return m_textAutosizingWindowSizeOverride; }
 
     SETTINGS_GETTERS_AND_SETTERS
 
     // FIXME: This does not belong here.
     static void setMockScrollbarsEnabled(bool flag);
     static bool mockScrollbarsEnabled();
 
-    // FIXME: naming_utilities.py isn't smart enough to handle OpenGL yet.
-    // It could handle "GL", but that seems a bit overly broad.
-    void setOpenGLMultisamplingEnabled(bool flag);
-    bool openGLMultisamplingEnabled() { return m_openGLMultisamplingEnabled; }
-
     void setDelegate(SettingsDelegate*);
 
 private:
     Settings();
 
     void invalidate(SettingsDelegate::ChangeType);
 
     SettingsDelegate* m_delegate;
 
     GenericFontFamilySettings m_genericFontFamilySettings;
-    bool m_openGLMultisamplingEnabled : 1;
     IntSize m_textAutosizingWindowSizeOverride;
     bool m_textAutosizingEnabled : 1;
 
     SETTINGS_MEMBER_VARIABLES
 };
 
 } // namespace blink
 
 #endif // Settings_h