Clarify fullscreenElement vs. currentFullScreenElement distinction

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/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 859 matching lines @@
                 break;
             return true;
         }
     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::isActiveFullScreenElement(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 253 matching lines @@
 }
 
 bool SelectorChecker::matchesFocusPseudoClass(const Element& element)
 {
     if (InspectorInstrumentation::forcePseudoState(const_cast<Element*>(&element), CSSSelector::PseudoFocus))
         return true;
     return element.focused() && isFrameFocused(element);
 }
 
 } // namespace blink