Keep QS black during auth

Test: manual
Test: atest ScrimControllerTest
Fixes: 219803566
Change-Id: I2150a20c0e75d353657da06acf46319dd8d3b81e

packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java

@@ -743,6 +743,10 @@ public class ScrimController implements ViewTreeObserver.OnPreDrawListener, Dump
 
             mBehindAlpha = behindFraction * mDefaultScrimAlpha;
             mNotificationsAlpha = mBehindAlpha;
+            if (mClipsQsScrim) {
+                mBehindAlpha = 1;
+                mBehindTint = Color.BLACK;
+            }
         } else if (mState == ScrimState.KEYGUARD || mState == ScrimState.SHADE_LOCKED
                 || mState == ScrimState.PULSING) {
             Pair<Integer, Float> result = calculateBackStateForState(mState);

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java

@@ -1103,6 +1103,7 @@ public class ScrimControllerTest extends SysuiTestCase {
         // GIVEN device has an activity showing ('UNLOCKED' state can occur on the lock screen
         // with the camera app occluding the keyguard)
         mScrimController.transitionTo(ScrimState.UNLOCKED);
+        mScrimController.setClipsQsScrim(true);
         mScrimController.setRawPanelExpansionFraction(1);
         // notifications scrim alpha change require calling setQsPosition
         mScrimController.setQsPosition(0, 300);
@@ -1116,6 +1117,12 @@ public class ScrimControllerTest extends SysuiTestCase {
                 mScrimBehind.getViewAlpha(), 1, 0.0);
         assertEquals("Notifications scrim should be opaque",
                 mNotificationsScrim.getViewAlpha(), 1, 0.0);
+
+        assertScrimTinted(Map.of(
+                mScrimInFront, true,
+                mScrimBehind, true,
+                mNotificationsScrim, false
+        ));
     }
 
     @Test