Remove FullScreen from RuntimeEnabledFeatures

Source/web/WebRuntimeFeatures.cpp

 /*
  * Copyright (C) 2013 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 115 matching lines @@
 void WebRuntimeFeatures::enableFastTextAutosizing(bool enable)
 {
     RuntimeEnabledFeatures::setFastTextAutosizingEnabled(enable);
 }
 
 void WebRuntimeFeatures::enableFileSystem(bool enable)
 {
     RuntimeEnabledFeatures::setFileSystemEnabled(enable);
 }
 
-void WebRuntimeFeatures::enableFullscreen(bool enable)
-{
-    RuntimeEnabledFeatures::setFullscreenEnabled(enable);
-}
-
 void WebRuntimeFeatures::enableGamepad(bool enable)
 {
     RuntimeEnabledFeatures::setGamepadEnabled(enable);
 }
 
 void WebRuntimeFeatures::enableLazyLayout(bool enable)
 {
     // FIXME: Remove this once Chromium stops calling this.
 }
 
@@ skipping 147 matching lines @@
 {
     RuntimeEnabledFeatures::setExperimentalWebSocketEnabled(enable);
 }
 
 void WebRuntimeFeatures::enableTargetedStyleRecalc(bool enable)
 {
     RuntimeEnabledFeatures::setTargetedStyleRecalcEnabled(enable);
 }
 
 } // namespace blink