Fixing sysui scrim not updating in landscape UI

Bug: 156422012
Change-Id: I2e1e9149e8337dd663bf564bd1b7f661ec2864e9
diff --git a/quickstep/src/com/android/quickstep/views/ShelfScrimView.java b/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
index bec3050..19e278b 100644
--- a/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
+++ b/quickstep/src/com/android/quickstep/views/ShelfScrimView.java
@@ -244,13 +244,17 @@
 
     @Override
     protected void updateSysUiColors() {
-        // Use a light system UI (dark icons) if all apps is behind at least half of the
-        // status bar.
-        boolean forceChange = mShelfTop <= mLauncher.getDeviceProfile().getInsets().top / 2f;
-        if (forceChange) {
-            mLauncher.getSystemUiController().updateUiState(UI_STATE_SCRIM_VIEW, !mIsScrimDark);
+        if (mDrawingFlatColor) {
+            super.updateSysUiColors();
         } else {
-            mLauncher.getSystemUiController().updateUiState(UI_STATE_SCRIM_VIEW, 0);
+            // Use a light system UI (dark icons) if all apps is behind at least half of the
+            // status bar.
+            boolean forceChange = mShelfTop <= mLauncher.getDeviceProfile().getInsets().top / 2f;
+            if (forceChange) {
+                mLauncher.getSystemUiController().updateUiState(UI_STATE_SCRIM_VIEW, !mIsScrimDark);
+            } else {
+                mLauncher.getSystemUiController().updateUiState(UI_STATE_SCRIM_VIEW, 0);
+            }
         }
     }