Set the unique_event_id when converting from TouchEvent to WebTouchEvent

ui/aura/window_event_dispatcher.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/aura/window_event_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 481 matching lines @@
         !held_move_event_->IsTouchEvent()) {
       const ui::TouchEvent& touchevent =
           static_cast<const ui::TouchEvent&>(event);
 
       if (!touchevent.synchronous_handling_disabled()) {
         scoped_ptr<ui::GestureRecognizer::Gestures> gestures;
 
         // Once we've fully migrated to the eager gesture detector, we won't
         // need to pass an event here.
         gestures.reset(ui::GestureRecognizer::Get()->AckSyncTouchEvent(
-            touchevent.unique_event_id(), event.result(),
+            touchevent.unique_touch_event_id(), event.result(),
             static_cast<Window*>(target)));
 
         return ProcessGestures(gestures.get());
       }
     }
   }
 
   return details;
 }
 
@@ skipping 380 matching lines @@
   }
 
   // This flag is set depending on the gestures recognized in the call above,
   // and needs to propagate with the forwarded event.
   event->set_may_cause_scrolling(orig_event.may_cause_scrolling());
 
   PreDispatchLocatedEvent(target, event);
 }
 
 }  // namespace aura