Polish lock animation - launcher should do a fade out.

ash/wm/power_button_controller.cc

Index: ash/wm/power_button_controller.cc
diff --git a/ash/wm/power_button_controller.cc b/ash/wm/power_button_controller.cc
index 621b24a7fd7a47e937f2678ce88982e12400afdc..0667345b0544f9727af730dba2e87eaf8e025f5c 100644
--- a/ash/wm/power_button_controller.cc
+++ b/ash/wm/power_button_controller.cc
@@ -169,6 +169,11 @@ void GetContainers(int container_mask, aura::Window::Windows* containers) {
         root_window,
         internal::kShellWindowId_DesktopBackgroundContainer));
   }
+  if (container_mask & PowerButtonController::LAUNCHER) {
+    containers->push_back(Shell::GetContainer(
+        root_window,
+        internal::kShellWindowId_LauncherContainer));
+  }
   if (container_mask & PowerButtonController::NON_LOCK_SCREEN_CONTAINERS) {
     containers->push_back(Shell::GetContainer(
         root_window,
@@ -283,6 +288,7 @@ gfx::Rect PowerButtonController::TestApi::GetBlackLayerBounds() const {
 // static
 int PowerButtonController::GetAllContainersMask() {
   return PowerButtonController::DESKTOP_BACKGROUND |
+         PowerButtonController::LAUNCHER |
          PowerButtonController::NON_LOCK_SCREEN_CONTAINERS |
          GetAllLockScreenContainersMask();
 }
@@ -353,7 +359,7 @@ void PowerButtonController::OnLockStateChanged(bool locked) {
           this, &PowerButtonController::OnLockToShutdownTimeout);
     }
   } else {
-    StartAnimation(DESKTOP_BACKGROUND | NON_LOCK_SCREEN_CONTAINERS,
+    StartAnimation(DESKTOP_BACKGROUND | LAUNCHER | NON_LOCK_SCREEN_CONTAINERS,
                    ANIMATION_RESTORE);
     HideBlackLayer();
   }
@@ -372,6 +378,8 @@ void PowerButtonController::OnStartingLock() {
   // as part of the slow-close animation.
   ShowBlackLayer();
 
+  StartAnimation(LAUNCHER, ANIMATION_HIDE);
+
   StartAnimation(NON_LOCK_SCREEN_CONTAINERS, ANIMATION_FAST_CLOSE);
 
   // Hide the screen locker containers so we can make them fade in later.
@@ -510,7 +518,7 @@ void PowerButtonController::OnLockTimeout() {
 void PowerButtonController::OnLockFailTimeout() {
   DCHECK_NE(login_status_, user::LOGGED_IN_LOCKED);
   LOG(ERROR) << "Screen lock request timed out";
-  StartAnimation(NON_LOCK_SCREEN_CONTAINERS, ANIMATION_RESTORE);
+  StartAnimation(LAUNCHER | NON_LOCK_SCREEN_CONTAINERS, ANIMATION_RESTORE);
   HideBlackLayer();
 }
 
@@ -560,7 +568,7 @@ void PowerButtonController::StartShutdownAnimationAndRequestShutdown() {
     // Hide the other containers before starting the animation.
     // ANIMATION_FAST_CLOSE will make the screen locker windows partially
     // transparent, and we don't want the other windows to show through.
-    StartAnimation(NON_LOCK_SCREEN_CONTAINERS, ANIMATION_HIDE);
+    StartAnimation(LAUNCHER | NON_LOCK_SCREEN_CONTAINERS, ANIMATION_HIDE);
     StartAnimation(GetAllLockScreenContainersMask(), ANIMATION_FAST_CLOSE);
   } else {
     StartAnimation(GetAllContainersMask(), ANIMATION_FAST_CLOSE);