Improve detection of touch events when hiding media controls.

Source/core/events/MouseRelatedEvent.cpp

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. 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 17 matching lines @@
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderObject.h"
 
 namespace blink {
 
 MouseRelatedEvent::MouseRelatedEvent()
     : m_isSimulated(false)
     , m_hasCachedRelativePosition(false)
+    , m_derivesFromTouch(false)
 {
 }
 
 static LayoutSize contentsScrollOffset(AbstractView* abstractView)
 {
     if (!abstractView)
         return LayoutSize();
     LocalFrame* frame = abstractView->frame();
     if (!frame)
         return LayoutSize();
     FrameView* frameView = frame->view();
     if (!frameView)
         return LayoutSize();
     float scaleFactor = frame->pageZoomFactor();
     return LayoutSize(frameView->scrollX() / scaleFactor, frameView->scrollY() / scaleFactor);
 }
 
-MouseRelatedEvent::MouseRelatedEvent(const AtomicString& eventType, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<AbstractView> abstractView,
-                                     int detail, const IntPoint& screenLocation, const IntPoint& windowLocation,
-                                     const IntPoint& movementDelta,
-                                     bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool isSimulated)
+MouseRelatedEvent::MouseRelatedEvent(const AtomicString& eventType, bool canBubble, bool cancelable,
+    PassRefPtrWillBeRawPtr<AbstractView> abstractView, int detail, const IntPoint& screenLocation,
+    const IntPoint& windowLocation, const IntPoint& movementDelta, bool ctrlKey, bool altKey,
+    bool shiftKey, bool metaKey, bool isSimulated, bool derivesFromTouch)
     : UIEventWithKeyState(eventType, canBubble, cancelable, abstractView, detail, ctrlKey, altKey, shiftKey, metaKey)
     , m_screenLocation(screenLocation)
     , m_movementDelta(movementDelta)
     , m_isSimulated(isSimulated)
+    , m_derivesFromTouch(derivesFromTouch)
 {
     LayoutPoint adjustedPageLocation;
     LayoutPoint scrollPosition;
 
     LocalFrame* frame = view() ? view()->frame() : 0;
     if (frame && !isSimulated) {
         if (FrameView* frameView = frame->view()) {
             scrollPosition = frameView->scrollPosition();
             adjustedPageLocation = frameView->windowToContents(windowLocation);
             float scaleFactor = 1 / frame->pageZoomFactor();
@@ skipping 151 matching lines @@
     // See Microsoft documentation and <http://www.quirksmode.org/dom/w3c_events.html>.
     return m_clientLocation.y();
 }
 
 void MouseRelatedEvent::trace(Visitor* visitor)
 {
     UIEventWithKeyState::trace(visitor);
 }
 
 } // namespace blink