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

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

Index: third_party/WebKit/Source/core/dom/Element.cpp
diff --git a/third_party/WebKit/Source/core/dom/Element.cpp b/third_party/WebKit/Source/core/dom/Element.cpp
index 77e51203bd9007570bb39f0a6dfe8bc599cd508a..35d7b636f7c4765223042ee251abd1e9de9fa038 100644
--- a/third_party/WebKit/Source/core/dom/Element.cpp
+++ b/third_party/WebKit/Source/core/dom/Element.cpp
@@ -1630,7 +1630,7 @@ void Element::removedFrom(ContainerNode* insertionPoint) {
 
   DCHECK(!hasRareData() || !elementRareData()->hasPseudoElements());
 
-  if (Fullscreen::isFullscreenElement(*this)) {
+  if (Fullscreen::isCurrentFullScreenElement(*this)) {
     setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(false);
     if (insertionPoint->isElementNode()) {
       toElement(insertionPoint)->setContainsFullScreenElement(false);
@@ -4046,7 +4046,7 @@ bool Element::supportsStyleSharing() const {
     return false;
   if (hasAnimations())
     return false;
-  if (Fullscreen::isFullscreenElement(*this))
+  if (Fullscreen::isCurrentFullScreenElement(*this))
     return false;
   return true;
 }