Add lock pod animation on unlock.

ash/wm/session_state_controller_impl.h

 // 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.
 
 #ifndef ASH_WM_SESSION_STATE_CONTROLLER_IMPL_H_
 #define ASH_WM_SESSION_STATE_CONTROLLER_IMPL_H_
 
 #include "ash/ash_export.h"
 #include "ash/shell_observer.h"
 #include "ash/wm/session_state_animator.h"
@@ skipping 78 matching lines @@
 
   // RootWindowObserver override:
   virtual void OnRootWindowHostCloseRequested(
      const aura::RootWindow* root) OVERRIDE;
 
   // ShellObserver overrides:
   virtual void OnLoginStateChanged(user::LoginStatus status) OVERRIDE;
   virtual void OnAppTerminating() OVERRIDE;
   virtual void OnLockStateChanged(bool locked) OVERRIDE;
 
   // Returns true iff when we're in state when user session can be locked.

[Daniel Erat, 2012/10/25 15:45:58]

nit (doesn't need to be addressed in this change): add a "SessionStateController
overrides:" comment and delete all of the per-method comments, as is done above
for other overrides.  (otherwise, these comments will get stale as the versions
in the base class are updated)

   virtual bool IsEligibleForLock() OVERRIDE;
 
   // Returns true if system is locked.
   virtual bool IsLocked() OVERRIDE;
 
   // Starts locking (with slow animation) that can be cancelled.
   // After locking and |kLockToShutdownTimeoutMs| StartShutdownAnimation()
   // will be called unless CancelShutdownAnimation() is called, if
   // shutdown_after_lock is true.
   virtual void StartLockAnimation(bool shutdown_after_lock) OVERRIDE;
@@ skipping 23 matching lines @@
 
   // Cancels shutting down and reverts shutdown animation.
   virtual void CancelShutdownAnimation() OVERRIDE;
 
   // Called when Chrome gets a request to display the lock screen.
   virtual void OnStartingLock() OVERRIDE;
 
   // Displays the shutdown animation and requests shutdown when it's done.
   virtual void RequestShutdown() OVERRIDE;
 
+  virtual void OnLockScreenHide(base::Callback<void(void)>& callback) OVERRIDE;
+
  protected:
   friend class test::PowerButtonControllerTest;
 
   bool IsLoggedInAsNonGuest() const;
 
  private:
   void RequestShutdownImpl();
 
   // Starts lock timer.
   void StartLockTimer();
@@ skipping 57 matching lines @@
   // request shutdown.  Gives the animation time to complete before Chrome, X,
   // etc. are shut down.
   base::OneShotTimer<SessionStateControllerImpl> real_shutdown_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionStateControllerImpl);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_SESSION_STATE_CONTROLLER_IMPL_H_