Check current user owns a frp credential

In Android U+ tablet device, Android introduces headless mode which
running on a main user instead of system user. Therefore, device throw
a security error in HSUM build now.

For now, we check whether current user owns a frp
credential instead. This way also works on non HSUM build.

Test: robo test + run FRP mode in Suw flow.
Fix: 262438904
Change-Id: Ie4c7c470b13b9de8d532e61e9984521cebe7adff

tests/robotests/src/com/android/settings/testutils/shadow/ShadowLockPatternUtils.java

@@ -19,6 +19,8 @@ package com.android.settings.testutils.shadow;
 import android.app.admin.DevicePolicyManager;
 import android.app.admin.PasswordMetrics;
 import android.content.ComponentName;
+import android.content.Context;
+import android.content.pm.UserInfo;
 import android.os.UserHandle;
 
 import com.android.internal.widget.LockPatternUtils;
@@ -42,6 +44,8 @@ public class ShadowLockPatternUtils {
     private static Map<Integer, PasswordMetrics> sUserToProfileMetricsMap = new HashMap<>();
     private static Map<Integer, Boolean> sUserToIsSecureMap = new HashMap<>();
 
+    private static boolean sIsUserOwnsFrpCredential;
+
     @Resetter
     public static void reset() {
         sUserToComplexityMap.clear();
@@ -50,6 +54,7 @@ public class ShadowLockPatternUtils {
         sUserToProfileMetricsMap.clear();
         sUserToIsSecureMap.clear();
         sDeviceEncryptionEnabled = false;
+        sIsUserOwnsFrpCredential = false;
     }
 
     @Implementation
@@ -122,6 +127,15 @@ public class ShadowLockPatternUtils {
         return complexity;
     }
 
+    @Implementation
+    public static boolean userOwnsFrpCredential(Context context, UserInfo info) {
+        return sIsUserOwnsFrpCredential;
+    }
+
+    public static void setUserOwnsFrpCredential(boolean isUserOwnsFrpCredential) {
+        sIsUserOwnsFrpCredential = isUserOwnsFrpCredential;
+    }
+
     public static void setRequiredPasswordComplexity(int userHandle, int complexity) {
         sUserToComplexityMap.put(userHandle, complexity);
     }