Clean up some OOPIF-related naming and comments in Fullscreen.

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)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 49 matching lines @@
     static bool isActiveFullScreenElement(const Element&);
 
     enum RequestType {
         // Element.requestFullscreen()
         UnprefixedRequest,
         // Element.webkitRequestFullscreen()/webkitRequestFullScreen() and
         // HTMLVideoElement.webkitEnterFullscreen()/webkitEnterFullScreen()
         PrefixedRequest,
     };
 
-    // |forCrossProcessAncestor| is used in OOPIF scenarios and is set to true
-    // when fullscreen is requested for an out-of-process descendant element.
-    void requestFullscreen(Element&, RequestType, bool forCrossProcessAncestor = false);
+    // |forCrossProcessDescendant| is used in OOPIF scenarios and is set to
+    // true when fullscreen is requested for an out-of-process descendant
+    // element.
+    void requestFullscreen(Element&, RequestType, bool forCrossProcessDescendant = false);
 
     static void fullyExitFullscreen(Document&);
     void exitFullscreen();
 
     static bool fullscreenEnabled(Document&);
     Element* fullscreenElement() const { return !m_fullScreenElementStack.isEmpty() ? m_fullScreenElementStack.last().first.get() : 0; }
 
-    // |isAncestorOfFullscreenElement| is used in OOPIF scenarios and is set to
-    // true when these functions are called to enter/exit fullscreen for an
-    // out-of-process descendant element.  In this case, we enter fullscreen
-    // for its (local) iframe container and make sure to also set the
-    // ContainsFullScreenElement flag on it (so that it gains the
-    // -webkit-full-screen-ancestor style).
     void didEnterFullScreenForElement(Element*);
     void didExitFullScreenForElement();
 
     void setFullScreenLayoutObject(LayoutFullScreen*);
     LayoutFullScreen* fullScreenLayoutObject() const { return m_fullScreenLayoutObject; }
     void fullScreenLayoutObjectDestroyed();
 
     void elementRemoved(Element&);
 
     // Returns true if the current fullscreen element stack corresponds to a
-    // container for an actual fullscreen element in an out-of-process iframe.
-    bool forCrossProcessAncestor() { return m_forCrossProcessAncestor; }
+    // container for an actual fullscreen element in a descendant
+    // out-of-process iframe.
+    bool forCrossProcessDescendant() { return m_forCrossProcessDescendant; }
 
     // Mozilla API
     Element* webkitCurrentFullScreenElement() const { return m_fullScreenElement.get(); }
 
     // ContextLifecycleObserver:
     void contextDestroyed() override;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
@@ skipping 21 matching lines @@
 
     // TODO(alexmos, dcheng): Currently, this assumes that if fullscreen was
     // entered for an element in an out-of-process iframe, then it's not
     // possible to re-enter fullscreen for a different element in this
     // document, since that requires a user gesture, which can't be obtained
     // since nothing in this document is visible, and since user gestures can't
     // be forwarded across processes. However, the latter assumption could
     // change if https://crbug.com/161068 is fixed so that cross-process
     // postMessage can carry user gestures.  If that happens, this should be
     // moved to be part of |m_fullScreenElementStack|.
-    bool m_forCrossProcessAncestor;
+    bool m_forCrossProcessDescendant;
 };
 
 inline bool Fullscreen::isActiveFullScreenElement(const Element& element)
 {
     Fullscreen* fullscreen = fromIfExists(element.document());
     if (!fullscreen)
         return false;
     return fullscreen->webkitCurrentFullScreenElement() == &element;
 }
 
 inline Fullscreen* Fullscreen::fromIfExists(Document& document)
 {
     if (!document.hasFullscreenSupplement())
         return 0;
     return fromIfExistsSlow(document);
 }
 
 } // namespace blink
 
 #endif // Fullscreen_h