Move document.visualViewport to window.visualViewport

third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 1013 matching lines @@
     if (!host)
         return 0;
 
     frame()->document()->updateStyleAndLayoutIgnorePendingStylesheets();
 
     ScrollableArea* viewport = host->settings().inertVisualViewport() ? view->layoutViewportScrollableArea() : view->getScrollableArea();
     double viewportY = viewport->scrollPositionDouble().y();
     return adjustScrollForAbsoluteZoom(viewportY, frame()->pageZoomFactor());
 }
 
+VisualViewport* LocalDOMWindow::visualViewport()
+{
+    if (!frame())
+        return nullptr;
+
+    FrameHost* host = frame()->host();
+    if (!host)
+        return nullptr;
+
+    return &host->visualViewport();
+}
+
 const AtomicString& LocalDOMWindow::name() const
 {
     if (!isCurrentlyDisplayedInFrame())
         return nullAtom;
 
     return frame()->tree().name();
 }
 
 void LocalDOMWindow::setName(const AtomicString& name)
 {
@@ skipping 494 matching lines @@
 {
     // If the LocalDOMWindow still has a frame reference, that frame must point
     // back to this LocalDOMWindow: otherwise, it's easy to get into a situation
     // where script execution leaks between different LocalDOMWindows.
     if (m_frameObserver->frame())
         ASSERT_WITH_SECURITY_IMPLICATION(m_frameObserver->frame()->domWindow() == this);
     return m_frameObserver->frame();
 }
 
 } // namespace blink