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

third_party/WebKit/Source/web/WebPluginContainerImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 310 matching lines @@
 
   if (element_)
     element_->SetNeedsCompositingUpdate();
 }
 
 void WebPluginContainerImpl::RequestFullscreen() {
   Fullscreen::RequestFullscreen(*element_);
 }
 
 bool WebPluginContainerImpl::IsFullscreenElement() const {
-  return Fullscreen::IsCurrentFullScreenElement(*element_);
+  return Fullscreen::IsFullscreenElement(*element_);
 }
 
 void WebPluginContainerImpl::CancelFullscreen() {
   Fullscreen::FullyExitFullscreen(element_->GetDocument());
 }
 
 bool WebPluginContainerImpl::SupportsPaginatedPrint() const {
   return web_plugin_->SupportsPaginatedPrint();
 }
 
@@ skipping 700 matching lines @@
            .GetLayoutViewItem()
            .IsNull()) {
     // Take our element and get the clip rect from the enclosing layer and
     // frame view.
     ComputeClipRectsForPlugin(element_, window_rect, clip_rect,
                               unobscured_rect);
   }
 }
 
 }  // namespace blink