Use device protected storage am: 6131f6d27e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Car/RotaryController/+/12622305

Change-Id: I33dd2611553368eb2b560f53d3ae625f5d08db37
diff --git a/src/com/android/car/rotary/RotaryService.java b/src/com/android/car/rotary/RotaryService.java
index 9fd5d14..f340df2 100644
--- a/src/com/android/car/rotary/RotaryService.java
+++ b/src/com/android/car/rotary/RotaryService.java
@@ -406,7 +406,8 @@
                 hunRight,
                 showHunOnBottom);
 
-        mPrefs = getSharedPreferences(SHARED_PREFS, Context.MODE_PRIVATE);
+        mPrefs = createDeviceProtectedStorageContext().getSharedPreferences(SHARED_PREFS,
+                Context.MODE_PRIVATE);
         mUserManager = getSystemService(UserManager.class);
         mTouchInputMethod = mPrefs.getString(
                 TOUCH_INPUT_METHOD_PREFIX + mUserManager.getUserName(),