ozone: evdev: Make cancellation of repeats on key up more robust

ui/events/ozone/evdev/keyboard_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_KEYBOARD_EVDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_KEYBOARD_EVDEV_H_
 
 #include <bitset>
 #include <linux/input.h>
 
@@ skipping 35 matching lines @@
   void SetAutoRepeatRate(const base::TimeDelta& delay,
                          const base::TimeDelta& interval);
   void GetAutoRepeatRate(base::TimeDelta* delay, base::TimeDelta* interval);
 
  private:
   void UpdateModifier(int modifier_flag, bool down);
   void UpdateCapsLockLed();
   void UpdateKeyRepeat(unsigned int key, bool down);
   void StartKeyRepeat(unsigned int key);
   void StopKeyRepeat();
-  void OnRepeatDelayTimeout();
-  void OnRepeatIntervalTimeout();
+  void ScheduleKeyRepeat(const base::TimeDelta& delay);
+  void OnRepeatTimeout(unsigned int sequence);
+  void DispatchKeyRepeat(unsigned int key);
   void DispatchKey(unsigned int key,
                    bool down,
                    bool repeat,
                    base::TimeDelta timestamp);
 
   // Aggregated key state. There is only one bit of state per key; we do not
   // attempt to count presses of the same key on multiple keyboards.
   //
   // A key is down iff the most recent event pertaining to that key was a key
   // down event rather than a key up event. Therefore, a particular key position
   // can be considered released even if it is being depresssed on one or more
   // keyboards.
   std::bitset<KEY_CNT> key_state_;
 
   // Callback for dispatching events.
   EventDispatchCallback callback_;
 
   // Shared modifier state.
   EventModifiersEvdev* modifiers_;
 
   // Shared layout engine.
   KeyboardLayoutEngine* keyboard_layout_engine_;
 
   // Key repeat state.
   bool repeat_enabled_;
   unsigned int repeat_key_;
+  unsigned int repeat_sequence_;
   base::TimeDelta repeat_delay_;
   base::TimeDelta repeat_interval_;
-  base::OneShotTimer<KeyboardEvdev> repeat_delay_timer_;
-  base::RepeatingTimer<KeyboardEvdev> repeat_interval_timer_;
+
+  base::WeakPtrFactory<KeyboardEvdev> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardEvdev);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_KEYBOARD_EVDEV_H_