ozone: evdev: Dispatch events in task

ui/events/ozone/evdev/event_factory_evdev.h

 // 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.
 
 #ifndef UI_EVENTS_OZONE_EVDEV_EVENT_FACTORY_EVDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_EVENT_FACTORY_EVDEV_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 17 matching lines @@
 class DeviceManager;
 
 // Ozone events implementation for the Linux input subsystem ("evdev").
 class EVENTS_OZONE_EVDEV_EXPORT EventFactoryEvdev : public DeviceEventObserver,
                                                     public PlatformEventSource {
  public:
   EventFactoryEvdev(CursorDelegateEvdev* cursor,
                     DeviceManager* device_manager);
   virtual ~EventFactoryEvdev();
 
-  void DispatchUiEvent(Event* event);
-
   void WarpCursorTo(gfx::AcceleratedWidget widget,
                     const gfx::PointF& location);
 
  private:
+  // Post a task to dispatch an event.
+  void PostUiEvent(scoped_ptr<Event> event);
+
+  // Dispatch event via PlatformEventSource.
+  void DispatchUiEventTask(scoped_ptr<Event> event);
+
   // Open device at path & starting processing events (on UI thread).
   void AttachInputDevice(scoped_ptr<EventConverterEvdev> converter);
 
   // Close device at path (on UI thread).
   void DetachInputDevice(const base::FilePath& file_path);
 
   void NotifyHotplugEventObserver(const EventConverterEvdev& converter);
 
   int NextDeviceId();
 
@@ skipping 31 matching lines @@
 
   // Support weak pointers for attach & detach callbacks.
   base::WeakPtrFactory<EventFactoryEvdev> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EventFactoryEvdev);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_EVENT_FACTORY_EVDEV_H_