Reland "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 1037 matching lines @@
     }
     case CSSSelector::kPseudoFullScreen:
       // 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::IsCurrentFullScreenElement(element);
+      return Fullscreen::IsFullscreenElement(element);
     case CSSSelector::kPseudoFullScreenAncestor:
       return element.ContainsFullScreenElement();
     case CSSSelector::kPseudoVideoPersistent:
       DCHECK(is_ua_rule_);
       return isHTMLVideoElement(element) &&
              toHTMLVideoElement(element).IsPersistent();
     case CSSSelector::kPseudoVideoPersistentAncestor:
       DCHECK(is_ua_rule_);
       return element.ContainsPersistentVideo();
     case CSSSelector::kPseudoInRange:
@@ skipping 302 matching lines @@
 bool SelectorChecker::MatchesFocusPseudoClass(const Element& element) {
   bool force_pseudo_state = false;
   probe::forcePseudoState(const_cast<Element*>(&element),
                           CSSSelector::kPseudoFocus, &force_pseudo_state);
   if (force_pseudo_state)
     return true;
   return element.IsFocused() && IsFrameFocused(element);
 }
 
 }  // namespace blink