[PATCH 11/11] ozone: evdev: Add dedicated events thread

ui/events/ozone/evdev/input_device_factory_evdev_proxy.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_INPUT_DEVICE_FACTORY_PROXY_EVDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_PROXY_EVDEV_H_
 
 #include <set>
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
 
 namespace ui {
 
 enum class DomCode;
 class InputDeviceFactoryEvdev;
 
 typedef base::Callback<void(scoped_ptr<std::string>)> GetTouchDeviceStatusReply;
 
 // Thread safe proxy for InputDeviceFactoryEvdev.
+//
+// This is used on the UI thread to proxy calls to the real object on
+// the device I/O thread.
 class EVENTS_OZONE_EVDEV_EXPORT InputDeviceFactoryEvdevProxy {
  public:
   InputDeviceFactoryEvdevProxy(
       scoped_refptr<base::SingleThreadTaskRunner> task_runner,
       base::WeakPtr<InputDeviceFactoryEvdev> input_device_factory);
   ~InputDeviceFactoryEvdevProxy();
 
   // See InputDeviceFactoryEvdev for docs. These calls simply forward to
   // that object on another thread.
   void AddInputDevice(int id, const base::FilePath& path);
@@ skipping 15 matching lines @@
  private:
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   base::WeakPtr<InputDeviceFactoryEvdev> input_device_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InputDeviceFactoryEvdevProxy);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_PROXY_EVDEV_H_