Template methods on Timer classes instead of the classes themselves.

ui/events/ozone/evdev/libgestures_glue/gesture_timer_provider.cc

 // 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.
 
 #include "ui/events/ozone/evdev/libgestures_glue/gesture_timer_provider.h"
 
 #include <gestures/gestures.h>
 
 #include "base/timer/timer.h"
 
@@ skipping 23 matching lines @@
       timer_.Start(FROM_HERE,
                    base::TimeDelta::FromMicroseconds(
                        next_delay * base::Time::kMicrosecondsPerSecond),
                    this,
                    &GesturesTimer::OnTimerExpired);
     }
   }
 
   GesturesTimerCallback callback_ = nullptr;
   void* callback_data_ = nullptr;
-  base::OneShotTimer<GesturesTimer> timer_;
+  base::OneShotTimer timer_;
 };
 
 namespace ui {
 
 namespace {
 
 GesturesTimer* GesturesTimerCreate(void* data) { return new GesturesTimer; }
 
 void GesturesTimerSet(void* data,
                       GesturesTimer* timer,
@@ skipping 16 matching lines @@
     PLOG(FATAL) << "clock_gettime";
 
   return StimeFromTimespec(&ts);
 }
 
 const GesturesTimerProvider kGestureTimerProvider = {
     GesturesTimerCreate, GesturesTimerSet, GesturesTimerCancel,
     GesturesTimerFree};
 
 }  // namespace ui