Ensure fullscreen.css loaded for ancestor invalidation

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 438 matching lines @@
     bool shouldCreatePlaceholder = layoutObject && layoutObject->isBox();
     if (shouldCreatePlaceholder) {
         m_savedPlaceholderFrameRect = toLayoutBox(layoutObject)->frameRect();
         m_savedPlaceholderComputedStyle = ComputedStyle::clone(layoutObject->styleRef());
     }
 
     if (m_fullScreenElement != document()->documentElement())
         LayoutFullScreen::wrapLayoutObject(layoutObject, layoutObject ? layoutObject->parent() : 0, document());
 
     m_fullScreenElement->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(true);
-
     document()->styleEngine().ensureFullscreenUAStyle();
     m_fullScreenElement->pseudoStateChanged(CSSSelector::PseudoFullScreen);
 
     // FIXME: This should not call updateLayoutTree.
     document()->updateLayoutTree();
 
     m_fullScreenElement->didBecomeFullscreenElement();
 
     if (document()->frame())
         document()->frame()->eventHandler().scheduleHoverStateUpdate();
 
     m_eventQueueTimer.startOneShot(0, BLINK_FROM_HERE);
 }
 
 void Fullscreen::didExitFullScreenForElement(Element*)
 {
     if (!m_fullScreenElement)
         return;
 
     if (!document()->isActive())
         return;
 
     m_fullScreenElement->willStopBeingFullscreenElement();
 
     m_fullScreenElement->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(false);
 
     if (m_fullScreenLayoutObject)
         LayoutFullScreenItem(m_fullScreenLayoutObject).unwrapLayoutObject();
 
+    document()->styleEngine().ensureFullscreenUAStyle();
     m_fullScreenElement->pseudoStateChanged(CSSSelector::PseudoFullScreen);
     m_fullScreenElement = nullptr;
 
     if (document()->frame())
         document()->frame()->eventHandler().scheduleHoverStateUpdate();
 
     // When fullyExitFullscreen is called, we call exitFullscreen on the topDocument(). That means
     // that the events will be queued there. So if we have no events here, start the timer on the
     // exiting document.
     Document* exitingDocument = document();
@@ skipping 126 matching lines @@
 #if ENABLE(OILPAN)
     visitor->trace(m_fullScreenElement);
     visitor->trace(m_fullScreenElementStack);
     visitor->trace(m_eventQueue);
 #endif
     WillBeHeapSupplement<Document>::trace(visitor);
     DocumentLifecycleObserver::trace(visitor);
 }
 
 } // namespace blink