Add a requestFullscreen variant with a default (prefixed) type

third_party/WebKit/Source/web/WebRemoteFrameImpl.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "web/WebRemoteFrameImpl.h"
 
 #include "core/dom/Fullscreen.h"
 #include "core/dom/RemoteSecurityContext.h"
 #include "core/dom/SecurityContext.h"
 #include "core/frame/FrameView.h"
@@ skipping 506 matching lines @@
   // Passing |forCrossProcessAncestor| to requestFullscreen is necessary
   // because:
   // - |ownerElement| will need :-webkit-full-screen-ancestor style in
   //   addition to :-webkit-full-screen.
   // - there's no need to resend the ToggleFullscreen IPC to the browser
   //   process.
   //
   // TODO(alexmos): currently, this assumes prefixed requests, but in the
   // future, this should plumb in information about which request type
   // (prefixed or unprefixed) to use for firing fullscreen events.
-  Fullscreen::from(ownerElement->document())
-      .requestFullscreen(*ownerElement, Fullscreen::PrefixedRequest,
-                         true /* forCrossProcessAncestor */);
+  Fullscreen::requestFullscreen(*ownerElement,
+                                Fullscreen::RequestType::Prefixed,
+                                true /* forCrossProcessAncestor */);
 }
 
 WebRemoteFrameImpl::WebRemoteFrameImpl(WebTreeScopeType scope,
                                        WebRemoteFrameClient* client)
     : WebRemoteFrame(scope),
       m_frameClient(RemoteFrameClientImpl::create(this)),
       m_client(client),
       m_selfKeepAlive(this) {}
 
 }  // namespace blink