Fix leaks in aura_unittests

ui/base/gestures/gesture_recognizer_impl.cc

 // Copyright (c) 2012 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/base/gestures/gesture_recognizer_impl.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "ui/base/events/event.h"
@@ skipping 314 matching lines @@
       break;
 
     GestureSequence::Gestures* current_gestures = AdvanceTouchQueueByOne(
         consumer, event->status());
     if (current_gestures) {
       if (!gestures.get()) {
         gestures.reset(current_gestures);
       } else {
         gestures->insert(gestures->end(), current_gestures->begin(),
                                           current_gestures->end());
+        // current_gestures leaks here, but deleting it causes
+        // double free on some memory. crbug.com/146465.
       }
     }
   }
 
   return gestures.release();
 }
 
 void GestureRecognizerImpl::FlushTouchQueue(GestureConsumer* consumer) {
   if (consumer_sequence_.count(consumer)) {
     delete consumer_sequence_[consumer];
     consumer_sequence_.erase(consumer);
   }
 
   if (event_queue_.count(consumer)) {
     delete event_queue_[consumer];
     event_queue_.erase(consumer);
   }
 
   RemoveConsumerFromMap(consumer, &touch_id_target_);
   RemoveConsumerFromMap(consumer, &touch_id_target_for_gestures_);
 }
 
 // GestureRecognizer, static
 GestureRecognizer* GestureRecognizer::Create(GestureEventHelper* helper) {
   return new GestureRecognizerImpl(helper);
 }
 
 }  // namespace ui