Template methods on Timer classes instead of the classes themselves.

ash/system/chromeos/session/tray_session_length_limit.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 "ash/system/chromeos/session/tray_session_length_limit.h"
 
 #include <algorithm>
 
 #include "ash/shell.h"
 #include "ash/system/chromeos/label_tray_view.h"
@@ skipping 83 matching lines @@
   if (delegate->GetSessionStartTime(&session_start_time_) &&
       delegate->GetSessionLengthLimit(&time_limit_)) {
     const base::TimeDelta expiring_soon_threshold(
         base::TimeDelta::FromMinutes(kExpiringSoonThresholdInMinutes));
     remaining_session_time_ = std::max(
         time_limit_ - (base::TimeTicks::Now() - session_start_time_),
         base::TimeDelta());
     limit_state_ = remaining_session_time_ <= expiring_soon_threshold ?
         LIMIT_EXPIRING_SOON : LIMIT_SET;
     if (!timer_)
-      timer_.reset(new base::RepeatingTimer<TraySessionLengthLimit>);
+      timer_.reset(new base::RepeatingTimer);
     if (!timer_->IsRunning()) {
       timer_->Start(FROM_HERE,
                     base::TimeDelta::FromMilliseconds(
                         kTimerIntervalInMilliseconds),
                     this,
                     &TraySessionLengthLimit::Update);
     }
   } else {
     remaining_session_time_ = base::TimeDelta();
     limit_state_ = LIMIT_NONE;
@@ skipping 74 matching lines @@
 base::string16 TraySessionLengthLimit::ComposeTrayBubbleMessage() const {
   return l10n_util::GetStringFUTF16(
       IDS_ASH_STATUS_TRAY_BUBBLE_SESSION_LENGTH_LIMIT,
       ui::TimeFormat::Detailed(ui::TimeFormat::FORMAT_DURATION,
                                ui::TimeFormat::LENGTH_LONG,
                                10,
                                remaining_session_time_));
 }
 
 }  // namespace ash