Add a requestFullscreen variant with a default (prefixed) type

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

 /*
  * 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)
@@ skipping 45 matching lines @@
   virtual ~Fullscreen();
   static const char* supplementName();
   static Fullscreen& from(Document&);
   static Fullscreen* fromIfExists(Document&);
   static Element* fullscreenElementFrom(Document&);
   static Element* fullscreenElementForBindingFrom(TreeScope&);
   static Element* currentFullScreenElementFrom(Document&);
   static Element* currentFullScreenElementForBindingFrom(Document&);
   static bool isCurrentFullScreenElement(const Element&);
 
-  enum RequestType {
+  enum class RequestType {
     // Element.requestFullscreen()
-    UnprefixedRequest,
+    Unprefixed,
     // Element.webkitRequestFullscreen()/webkitRequestFullScreen() and
     // HTMLVideoElement.webkitEnterFullscreen()/webkitEnterFullScreen()
-    PrefixedRequest,
+    Prefixed,
   };
 
+  static void requestFullscreen(Element&);
+
   // |forCrossProcessDescendant| is used in OOPIF scenarios and is set to
   // true when fullscreen is requested for an out-of-process descendant
   // element.
   static void requestFullscreen(Element&,
                                 RequestType,
                                 bool forCrossProcessDescendant = false);
 
   static void fullyExitFullscreen(Document&);
   static void exitFullscreen(Document&);
 
@@ skipping 84 matching lines @@
 
 inline bool Fullscreen::isCurrentFullScreenElement(const Element& element) {
   if (Fullscreen* found = fromIfExists(element.document()))
     return found->currentFullScreenElement() == &element;
   return false;
 }
 
 }  // namespace blink
 
 #endif  // Fullscreen_h