Restore permission check in keyguard.

Fixes bug 11584685

Change-Id: I80621f5608505bdc365930e0276c297c0d5bff67
diff --git a/packages/Keyguard/AndroidManifest.xml b/packages/Keyguard/AndroidManifest.xml
index 9e296e2..66d1e75 100644
--- a/packages/Keyguard/AndroidManifest.xml
+++ b/packages/Keyguard/AndroidManifest.xml
@@ -38,6 +38,7 @@
     <uses-permission android:name="android.permission.BIND_DEVICE_ADMIN" />
     <uses-permission android:name="android.permission.CHANGE_COMPONENT_ENABLED_STATE" />
     <uses-permission android:name="android.permission.MEDIA_CONTENT_CONTROL" />
+    <uses-permission android:name="android.permission.ACCESS_KEYGUARD_SECURE_STORAGE" />
 
     <application android:label="@string/app_name"
         android:process="com.android.systemui"
diff --git a/services/java/com/android/server/LockSettingsService.java b/services/java/com/android/server/LockSettingsService.java
index cd746cf..35e7afa 100644
--- a/services/java/com/android/server/LockSettingsService.java
+++ b/services/java/com/android/server/LockSettingsService.java
@@ -154,11 +154,11 @@
     }
 
     private final void checkWritePermission(int userId) {
-        mContext.checkCallingOrSelfPermission(PERMISSION);
+        mContext.enforceCallingOrSelfPermission(PERMISSION, "LockSettingsWrite");
     }
 
     private final void checkPasswordReadPermission(int userId) {
-        mContext.checkCallingOrSelfPermission(PERMISSION);
+        mContext.enforceCallingOrSelfPermission(PERMISSION, "LockSettingsRead");
     }
 
     private final void checkReadPermission(String requestedKey, int userId) {