Drag-and-drop across OOPIFs.

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 308 matching lines @@
   view->invalidateRect(damagedRect);
 }
 
 const WebInputEvent* WebFrameWidgetImpl::m_currentInputEvent = nullptr;
 
 WebInputEventResult WebFrameWidgetImpl::handleInputEvent(
     const WebInputEvent& inputEvent) {
   TRACE_EVENT1("input", "WebFrameWidgetImpl::handleInputEvent", "type",
                WebInputEvent::GetName(inputEvent.type));
 
+  // If a drag-and-drop operation is in progress, ignore input events.
+  if (m_doingDragAndDrop)
+    return WebInputEventResult::HandledSuppressed;
+
   // Don't handle events once we've started shutting down.
   if (!page())
     return WebInputEventResult::NotHandled;
 
   if (InspectorOverlay* overlay = inspectorOverlay()) {
     if (overlay->handleInputEvent(inputEvent))
       return WebInputEventResult::HandledSuppressed;
   }
 
   // Report the event to be NOT processed by WebKit, so that the browser can
@@ skipping 807 matching lines @@
   return nullptr;
 }
 
 LocalFrame* WebFrameWidgetImpl::focusedLocalFrameAvailableForIme() const {
   if (!m_imeAcceptEvents)
     return nullptr;
   return focusedLocalFrameInWidget();
 }
 
 }  // namespace blink