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

Source/core/page/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. 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.
@@ skipping 2645 matching lines @@
 {
     HitTestRequest::HitTestRequestType hitType = HitTestRequest::TouchEvent;
     switch (type) {
     case PlatformEvent::GestureShowPress:
     case PlatformEvent::GestureTapUnconfirmed:
         return hitType | HitTestRequest::Active;
     case PlatformEvent::GestureTapDownCancel:
         // A TapDownCancel received when no element is active shouldn't really be changing hover state.
         if (!m_frame->document()->activeHoverElement())
             hitType |= HitTestRequest::ReadOnly;
-        return hitType | HitTestRequest::Release;
+        // allow :hover style to be sticky after long press
+        return hitType | HitTestRequest::Release | HitTestRequest::Hover;

[USE s.singapati at gmail.com, 2014/11/13 10:30:57]

Retained "Release" flag to not break any other that uses release flag.

     case PlatformEvent::GestureTap:
         return hitType | HitTestRequest::Release;
     case PlatformEvent::GestureTapDown:
     case PlatformEvent::GestureLongPress:
     case PlatformEvent::GestureLongTap:
     case PlatformEvent::GestureTwoFingerTap:
         // FIXME: Shouldn't LongTap and TwoFingerTap clear the Active state?
         return hitType | HitTestRequest::Active | HitTestRequest::ReadOnly;
     default:
         ASSERT_NOT_REACHED();
@@ skipping 1194 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink