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

Source/core/page/EventHandler.cpp

Index: Source/core/page/EventHandler.cpp
diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp
index 3d1279c3b704166d04a0ca9dd72322472a2267e8..7b93a2830fde359b0739a2662ee162c110421b21 100644
--- a/Source/core/page/EventHandler.cpp
+++ b/Source/core/page/EventHandler.cpp
@@ -2665,7 +2665,11 @@ HitTestRequest::HitTestRequestType EventHandler::getHitTypeForGestureType(Platfo
             hitType |= HitTestRequest::ReadOnly;
         return hitType | HitTestRequest::Release;
     case PlatformEvent::GestureTap:
-        return hitType | HitTestRequest::Release;
+        hitType |= HitTestRequest::Release;
+        // needs to clear hover on mobile optimized pages
+        if (m_frame->page()->shouldDisableDesktopWorkarounds())
+            hitType |= HitTestRequest::Leave;
+        return hitType;
     case PlatformEvent::GestureTapDown:
     case PlatformEvent::GestureLongPress:
     case PlatformEvent::GestureLongTap:
@@ -2960,7 +2964,14 @@ void EventHandler::activeIntervalTimerFired(Timer<EventHandler>*)
         && m_lastDeferredTapElement) {
         // FIXME: Enable condition when http://crbug.com/226842 lands
         // m_lastDeferredTapElement.get() == m_frame->document()->activeElement()
-        HitTestRequest request(HitTestRequest::TouchEvent | HitTestRequest::Release);
+
+        HitTestRequest::HitTestRequestType hitType = HitTestRequest::TouchEvent | HitTestRequest::Release;
+        // This is delayed updating of hover/active states for GestureTap.
+        // So, this needs to clear hover on mobile optimized pages
+        if (m_frame->page()->shouldDisableDesktopWorkarounds())
+            hitType |= HitTestRequest::Leave;
+
+        HitTestRequest request(hitType);
         m_frame->document()->updateHoverActiveState(request, m_lastDeferredTapElement.get());
     }
     m_lastDeferredTapElement = nullptr;