Implement touch events for site-isolation.

third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 300 matching lines @@
     FrameView* view = m_localRoot->frameView();
 
     WebRect damagedRect(0, 0, m_size.width, m_size.height);
     view->invalidateRect(damagedRect);
 }
 
 const WebInputEvent* WebFrameWidgetImpl::m_currentInputEvent = nullptr;
 
 WebInputEventResult WebFrameWidgetImpl::handleInputEvent(const WebInputEvent& inputEvent)
 {
-

[kenrb, 2016/02/25 00:58:04]

This probably isn't worth touching Blink, I'm guessing it wasn't deliberate?

[wjmaclean, 2016/02/25 12:23:02]

Done.

     TRACE_EVENT1("input", "WebFrameWidgetImpl::handleInputEvent", "type", inputTypeToName(inputEvent.type));
 
     // Report the event to be NOT processed by WebKit, so that the browser can handle it appropriately.
     if (m_ignoreInputEvents)
         return WebInputEventResult::NotHandled;
 
     // FIXME: pass event to m_localRoot's WebDevToolsAgentImpl once available.
 
     TemporaryChange<const WebInputEvent*> currentEventChange(m_currentInputEvent, &inputEvent);
 
@@ skipping 750 matching lines @@
 
 HitTestResult WebFrameWidgetImpl::hitTestResultForRootFramePos(const IntPoint& posInRootFrame)
 {
     IntPoint docPoint(m_localRoot->frame()->view()->rootFrameToContents(posInRootFrame));
     HitTestResult result = m_localRoot->frame()->eventHandler().hitTestResultAtPoint(docPoint, HitTestRequest::ReadOnly | HitTestRequest::Active);
     result.setToShadowHostIfInUserAgentShadowRoot();
     return result;
 }
 
 } // namespace blink