Added quick lock mechanism while in Touchview

ash/wm/lock_state_controller.cc

 // Copyright 2013 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/lock_state_controller.h"
 
 #include <algorithm>
 
 #include "ash/accessibility_delegate.h"
 #include "ash/ash_switches.h"
@@ skipping 191 matching lines @@
   shutdown_after_lock_ = shutdown_after_lock;
   can_cancel_lock_animation_ = true;
 
   StartCancellablePreLockAnimation();
 }
 
 void LockStateController::StartShutdownAnimation() {
   StartCancellableShutdownAnimation();
 }
 
-void LockStateController::StartLockAnimationAndLockImmediately() {
+void LockStateController::StartLockAnimationAndLockImmediately(
+    bool shutdown_after_lock) {
   if (animating_lock_)
     return;
+  shutdown_after_lock_ = shutdown_after_lock;
   StartImmediatePreLockAnimation(true /* request_lock_on_completion */);
 }
 
 bool LockStateController::LockRequested() {
   return lock_fail_timer_.IsRunning();
 }
 
 bool LockStateController::ShutdownRequested() {
   return shutting_down_;
 }
@@ skipping 461 matching lines @@
       unlocked_properties_->background_is_hidden) {
     animator_->StartAnimationWithObserver(
         SessionStateAnimator::DESKTOP_BACKGROUND,
         SessionStateAnimator::ANIMATION_FADE_OUT,
         speed,
         observer);
   }
 }
 
 }  // namespace ash