Do not blur shade while fading away

The shade will become expanded during face-auth when the keyguard is
going away. We need to ignore event until the keyguard is gone.

Test: unlock with face auth, from lock screen
Fixes: 153559173
Change-Id: If0db37bf22bef22ea3feab52ead6c6020a5a89dc

packages/SystemUI/src/com/android/systemui/statusbar/NotificationShadeDepthController.kt

@@ -250,7 +250,8 @@ class NotificationShadeDepthController @Inject constructor(
     private fun updateShadeBlur() {
         var newBlur = 0
         val state = statusBarStateController.state
-        if (state == StatusBarState.SHADE || state == StatusBarState.SHADE_LOCKED) {
+        if ((state == StatusBarState.SHADE || state == StatusBarState.SHADE_LOCKED) &&
+                !keyguardStateController.isKeyguardFadingAway) {
             newBlur = blurUtils.blurRadiusOfRatio(shadeExpansion)
         }
         shadeSpring.animateTo(newBlur)