Don't make :hover sticky on tap on sites that set a mobile viewport set

Source/core/page/ChromeClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple, Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 211 matching lines @@
     virtual void didChangeValueInTextField(HTMLFormControlElement&) { }
     virtual void didEndEditingOnTextField(HTMLInputElement&) { }
     virtual void handleKeyboardEventOnTextField(HTMLInputElement&, KeyboardEvent&) { }
 
     // Input mehtod editor related functions.
     virtual void didCancelCompositionOnSelectionChange() { }
     virtual void willSetInputMethodState() { }
     virtual void didUpdateTextOfFocusedElementByNonUserInput() { }
     virtual void showImeIfNeeded() { }
 
+    // Exposes WebViewImpl::shouldDisableDesktopWorkarounds() to blink core
+    virtual bool shouldDisableDesktopWorkarounds()
+    {
+        // assuming document is considered optimized for mobile devices, but this is implemented in WebViewImpl
+        return true;
+    }
+
 protected:
     virtual ~ChromeClient() { }
 };
 
 } // namespace blink
 
 #endif // ChromeClient_h