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

third_party/WebKit/Source/web/FullscreenController.cpp

 /*
  * Copyright (C) 2013 Google Inc. 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 138 matching lines @@
     // the scroll offset.
     if (!m_haveEnteredFullscreen) {
         m_exitFullscreenPageScaleFactor = m_webViewImpl->pageScaleFactor();
         m_exitFullscreenScrollOffset = m_webViewImpl->mainFrame()->isWebLocalFrame() ? m_webViewImpl->mainFrame()->scrollOffset() : WebSize();
         m_exitFullscreenVisualViewportOffset = m_webViewImpl->visualViewportOffset();
     }
 
     // We need to transition to fullscreen mode.
     WebLocalFrameImpl* frame = WebLocalFrameImpl::fromFrame(element->document().frame());
     if (frame && frame->client()) {
-        if (!Fullscreen::from(element->document()).forCrossProcessAncestor())
+        if (!Fullscreen::from(element->document()).forCrossProcessDescendant())
             frame->client()->enterFullscreen();
         m_provisionalFullScreenElement = element;
     }
 }
 
 void FullscreenController::exitFullScreenForElement(Element* element)
 {
     DCHECK(element);
 
     // The client is exiting full screen, so don't send a notification.
@@ skipping 39 matching lines @@
     m_webViewImpl->updateMainFrameLayoutSize();
 }
 
 DEFINE_TRACE(FullscreenController)
 {
     visitor->trace(m_provisionalFullScreenElement);
     visitor->trace(m_fullScreenFrame);
 }
 
 } // namespace blink