Improve detection of touch events when hiding media controls.

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 3291 matching lines @@
     request.setRequestContext(WebURLRequest::RequestContextDownload);
     m_page->deprecatedLocalMainFrame()->loader().client()->loadURLExternally(
         request, NavigationPolicyDownloadTo, WebString());
 }
 
 void WebViewImpl::dragSourceEndedAt(
     const WebPoint& clientPoint,
     const WebPoint& screenPoint,
     WebDragOperation operation)
 {
-    PlatformMouseEvent pme(clientPoint,
-                           screenPoint,
-                           LeftButton, PlatformEvent::MouseMoved, 0, false, false, false,
-                           false, 0);
+    PlatformMouseEvent pme(clientPoint, screenPoint, LeftButton, PlatformEvent::MouseMoved,
+        0, false, false, false, false, PlatformMouseEvent::RealOrIndistinguishable, 0);
     m_page->deprecatedLocalMainFrame()->eventHandler().dragSourceEndedAt(pme,
         static_cast<DragOperation>(operation));
 }
 
 void WebViewImpl::dragSourceSystemDragEnded()
 {
     // It's possible for us to get this callback while not doing a drag if
     // it's from a previous page that got unloaded.
     if (m_doingDragAndDrop) {
         m_page->dragController().dragEnded();
@@ skipping 942 matching lines @@
     const PageScaleConstraints& constraints = m_pageScaleConstraintsSet.pageDefinedConstraints();
 
     if (!mainFrameImpl() || !mainFrameImpl()->frameView())
         return false;
 
     return mainFrameImpl()->frameView()->layoutSize().width() == m_size.width
         || (constraints.minimumScale == constraints.maximumScale && constraints.minimumScale != -1);
 }
 
 } // namespace blink