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

third_party/WebKit/Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc.
  * All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
@@ skipping 1575 matching lines @@
     setIsInCanvasSubtree(true);
 
   return InsertionDone;
 }
 
 void Element::removedFrom(ContainerNode* insertionPoint) {
   bool wasInDocument = insertionPoint->isConnected();
 
   DCHECK(!hasRareData() || !elementRareData()->hasPseudoElements());
 
-  if (Fullscreen::isCurrentFullScreenElement(*this)) {
+  if (Fullscreen::isFullscreenElement(*this)) {
     setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(false);
     if (insertionPoint->isElementNode()) {
       toElement(insertionPoint)->setContainsFullScreenElement(false);
       toElement(insertionPoint)
           ->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(
               false);
     }
   }
 
   if (Fullscreen* fullscreen = Fullscreen::fromIfExists(document()))
@@ skipping 2394 matching lines @@
   if (this == document().cssTarget())
     return false;
   if (isHTMLElement() && toHTMLElement(this)->hasDirectionAuto())
     return false;
   // TODO(kochi): This prevents any slotted elements from sharing styles.
   // Investigate cases where we share styles to optimize styling performance.
   if (isChildOfV1ShadowHost())
     return false;
   if (hasAnimations())
     return false;
-  if (Fullscreen::isCurrentFullScreenElement(*this))
+  if (Fullscreen::isFullscreenElement(*this))
     return false;
   return true;
 }
 
 void Element::logAddElementIfIsolatedWorldAndInDocument(
     const char element[],
     const QualifiedName& attr1) {
   if (!isConnected())
     return;
   V8DOMActivityLogger* activityLogger =
@@ skipping 69 matching lines @@
 }
 
 DEFINE_TRACE_WRAPPERS(Element) {
   if (hasRareData()) {
     visitor->traceWrappers(elementRareData());
   }
   ContainerNode::traceWrappers(visitor);
 }
 
 }  // namespace blink