ozone: evdev: Fix possibility of stuck keys

ui/events/ozone/evdev/event_converter_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_CONVERTER_EVDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_EVENT_CONVERTER_EVDEV_H_
 
 #include <set>
 
 #include "base/callback.h"
@@ skipping 25 matching lines @@
   InputDeviceType type() const { return type_; }
 
   void set_ignore_events(bool ignore_events) { ignore_events_ = ignore_events; }
 
   // Start reading events.
   void Start();
 
   // Stop reading events.
   void Stop();
 
+  // Cleanup after we stop reading events (release buttons, etc).
+  virtual void OnStopped();
+
   // Returns true if the converter is used for a keyboard device.
   virtual bool HasKeyboard() const;
 
   // Returns true if the converter is used for a mouse device;
   virtual bool HasMouse() const;
 
   // Returns true if the converter is used for a touchpad device.
   virtual bool HasTouchpad() const;
 
   // Returns true if the converter is used for a touchscreen device.
@@ skipping 44 matching lines @@
   // Controller for watching the input fd.
   base::MessagePumpLibevent::FileDescriptorWatcher controller_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(EventConverterEvdev);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_EVENT_CONVERTER_EVDEV_H_