Use OnceCallback on Mojo interfaces in //ash

ash/wm/session_state_animator.cc

 // Copyright (c) 2012 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/wm/session_state_animator.h"
 
+#include <utility>
+
 #include "ash/ash_switches.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/shell.h"
 #include "ash/wm/window_animations.h"
 #include "base/command_line.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/compositor/layer_animation_observer.h"
 #include "ui/compositor/layer_animation_sequence.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
@@ skipping 14 matching lines @@
     SessionStateAnimator::LOCK_SCREEN_WALLPAPER |
     SessionStateAnimator::LOCK_SCREEN_CONTAINERS |
     SessionStateAnimator::LOCK_SCREEN_RELATED_CONTAINERS;
 
 const int SessionStateAnimator::kAllNonRootContainersMask =
     SessionStateAnimator::kAllLockScreenContainersMask |
     SessionStateAnimator::WALLPAPER | SessionStateAnimator::LAUNCHER |
     SessionStateAnimator::NON_LOCK_SCREEN_CONTAINERS;
 
 SessionStateAnimator::AnimationSequence::AnimationSequence(
-    base::Closure callback)
+    base::OnceClosure callback)
     : sequence_ended_(false),
       animation_completed_(false),
       invoke_callback_(false),
-      callback_(callback) {}
+      callback_(std::move(callback)) {}
 
 SessionStateAnimator::AnimationSequence::~AnimationSequence() {}
 
 void SessionStateAnimator::AnimationSequence::EndSequence() {
   sequence_ended_ = true;
   CleanupIfSequenceCompleted();
 }
 
 void SessionStateAnimator::AnimationSequence::OnAnimationCompleted() {
   animation_completed_ = true;
   invoke_callback_ = true;
   CleanupIfSequenceCompleted();
 }
 
 void SessionStateAnimator::AnimationSequence::OnAnimationAborted() {
   animation_completed_ = true;
   invoke_callback_ = false;
   CleanupIfSequenceCompleted();
 }
 
 void SessionStateAnimator::AnimationSequence::CleanupIfSequenceCompleted() {
   if (sequence_ended_ && animation_completed_) {
     if (invoke_callback_)
-      callback_.Run();
+      std::move(callback_).Run();
     delete this;
   }
 }
 
 SessionStateAnimator::SessionStateAnimator() {}
 
 SessionStateAnimator::~SessionStateAnimator() {}
 
 base::TimeDelta SessionStateAnimator::GetDuration(
     SessionStateAnimator::AnimationSpeed speed) {
@@ skipping 18 matching lines @@
     case ANIMATION_SPEED_REVERT_SHUTDOWN:
       return base::TimeDelta::FromMilliseconds(500);
   }
   // Satisfy compilers that do not understand that we will return from switch
   // above anyway.
   DCHECK(false) << "Unhandled animation speed " << speed;
   return base::TimeDelta();
 }
 
 }  // namespace ash