Turn off requirement that cross-origin top navigation be accompanied by a user gesture.

third_party/WebKit/Source/core/frame/Frame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 104 matching lines @@
 
   Frame* findFrameForNavigation(const AtomicString& name, Frame& activeFrame);
   Frame* findUnsafeParentScrollPropagationBoundary();
 
   // This prepares the Frame for the next commit. It will detach children,
   // dispatch unload events, abort XHR requests and detach the document.
   // Returns true if the frame is ready to receive the next commit, or false
   // otherwise.
   virtual bool prepareForCommit() = 0;
 
+  // TODO(japhet): These should all move to LocalFrame.
   bool canNavigate(const Frame&);
   virtual void printNavigationErrorMessage(const Frame&,
                                            const char* reason) = 0;
+  virtual void printNavigationWarning(const String&) = 0;
 
   // TODO(pilgrim): Replace all instances of ownerLayoutObject() with
   // ownerLayoutItem(), https://crbug.com/499321
   LayoutPart* ownerLayoutObject()
       const;  // LayoutObject for the element that contains this frame.
   LayoutPartItem ownerLayoutItem() const;
 
   Settings* settings() const;  // can be null
 
   // isLoading() is true when the embedder should think a load is in progress.
@@ skipping 39 matching lines @@
   return m_treeNode;
 }
 
 // Allow equality comparisons of Frames by reference or pointer,
 // interchangeably.
 DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES(Frame)
 
 }  // namespace blink
 
 #endif  // Frame_h