Change the type of a SVG <use> element's shadow tree from "user agent" to "closed"

third_party/WebKit/Source/core/input/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
@@ skipping 708 matching lines @@
     if (passMousePressEventToScrollbar(mev))
       eventResult = WebInputEventResult::HandledSystem;
     else
       eventResult = m_mouseEventManager->handleMousePressEvent(mev);
   }
 
   if (mev.hitTestResult().innerNode() &&
       mouseEvent.button == WebPointerProperties::Button::Left) {
     DCHECK_EQ(WebInputEvent::MouseDown, mouseEvent.type());
     HitTestResult result = mev.hitTestResult();
-    result.setToShadowHostIfInUserAgentShadowRoot();
+    result.setToShadowHostIfInRestrictedShadowRoot();
     m_frame->chromeClient().onMouseDown(result.innerNode());
   }
 
   return eventResult;
 }
 
 WebInputEventResult EventHandler::handleMouseMoveEvent(
     const WebMouseEvent& event,
     const Vector<WebMouseEvent>& coalescedEvents) {
   TRACE_EVENT0("blink", "EventHandler::handleMouseMoveEvent");
 
   HitTestResult hoveredNode = HitTestResult();
   WebInputEventResult result =
       handleMouseMoveOrLeaveEvent(event, coalescedEvents, &hoveredNode);
 
   Page* page = m_frame->page();
   if (!page)
     return result;
 
   if (PaintLayer* layer =
           EventHandlingUtil::layerForNode(hoveredNode.innerNode())) {
     if (ScrollableArea* layerScrollableArea =
             EventHandlingUtil::associatedScrollableArea(layer))
       layerScrollableArea->mouseMovedInContentArea();
   }
 
   if (FrameView* frameView = m_frame->view())
     frameView->mouseMovedInContentArea();
 
-  hoveredNode.setToShadowHostIfInUserAgentShadowRoot();
+  hoveredNode.setToShadowHostIfInRestrictedShadowRoot();
   page->chromeClient().mouseDidMoveOverElement(*m_frame, hoveredNode);
 
   return result;
 }
 
 void EventHandler::handleMouseLeaveEvent(const WebMouseEvent& event) {
   TRACE_EVENT0("blink", "EventHandler::handleMouseLeaveEvent");
 
   Page* page = m_frame->page();
   if (page)
@@ skipping 1324 matching lines @@
 }
 
 FrameHost* EventHandler::frameHost() const {
   if (!m_frame->page())
     return nullptr;
 
   return &m_frame->page()->frameHost();
 }
 
 }  // namespace blink