Revert of Sync requestFullscreen() and exitFullscreen() algorithms with the spec

third_party/WebKit/Source/core/css/SelectorChecker.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
@@ skipping 987 matching lines @@
     }
     case CSSSelector::PseudoFullScreen:
       // While a Document is in the fullscreen state, and the document's current
       // fullscreen element is an element in the document, the 'full-screen'
       // pseudoclass applies to that element. Also, an <iframe>, <object> or
       // <embed> element whose child browsing context's Document is in the
       // fullscreen state has the 'full-screen' pseudoclass applied.
       if (isHTMLFrameElementBase(element) &&
           element.containsFullScreenElement())
         return true;
-      return Fullscreen::isFullscreenElement(element);
+      return Fullscreen::isCurrentFullScreenElement(element);
     case CSSSelector::PseudoFullScreenAncestor:
       return element.containsFullScreenElement();
     case CSSSelector::PseudoInRange:
       if (m_mode == ResolvingStyle)
         element.document().setContainsValidityStyleRules();
       return element.isInRange();
     case CSSSelector::PseudoOutOfRange:
       if (m_mode == ResolvingStyle)
         element.document().setContainsValidityStyleRules();
       return element.isOutOfRange();
@@ skipping 289 matching lines @@
 }
 
 bool SelectorChecker::matchesFocusPseudoClass(const Element& element) {
   if (InspectorInstrumentation::forcePseudoState(const_cast<Element*>(&element),
                                                  CSSSelector::PseudoFocus))
     return true;
   return element.isFocused() && isFrameFocused(element);
 }
 
 }  // namespace blink