gesture: Make sure a combination of sync/async touch-events work correctly.

ui/aura/root_window.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/aura/root_window.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 873 matching lines @@
       if (!target)
         return false;
     }
 
     ui::TouchEvent translated_event(
         *event, static_cast<Window*>(this), target);
     status = ProcessTouchEvent(target, &translated_event);
     handled = status != ui::TOUCH_STATUS_UNKNOWN;
 
     if (status == ui::TOUCH_STATUS_QUEUED ||
-        status == ui::TOUCH_STATUS_QUEUED_END)
+        status == ui::TOUCH_STATUS_QUEUED_END) {
       gesture_recognizer_->QueueTouchEventForGesture(target, *event);
+      return true;
+    }
   }
 
   // Get the list of GestureEvents from GestureRecognizer.
   scoped_ptr<ui::GestureRecognizer::Gestures> gestures;
   gestures.reset(gesture_recognizer_->ProcessTouchEventForGesture(
       *event, status, target));
 
   return ProcessGestures(gestures.get()) ? true : handled;
 }
 
@@ skipping 131 matching lines @@
 void RootWindow::UnlockCompositor() {
   DCHECK(compositor_lock_);
   compositor_lock_ = NULL;
   if (draw_on_compositor_unlock_) {
     draw_on_compositor_unlock_ = false;
     ScheduleDraw();
   }
 }
 
 }  // namespace aura