Add a privileged permission to get user accounts

bug:22602794

Change-Id: I6e5429f0eb5f2cb274d4740755070e588735e179

Author: sganov

api/current.txt

@@ -66,6 +66,7 @@ package android {
     field public static final java.lang.String FACTORY_TEST = "android.permission.FACTORY_TEST";
     field public static final java.lang.String FLASHLIGHT = "android.permission.FLASHLIGHT";
     field public static final java.lang.String GET_ACCOUNTS = "android.permission.GET_ACCOUNTS";
+    field public static final java.lang.String GET_ACCOUNTS_PRIVILEGED = "android.permission.GET_ACCOUNTS_PRIVILEGED";
     field public static final java.lang.String GET_PACKAGE_SIZE = "android.permission.GET_PACKAGE_SIZE";
     field public static final deprecated java.lang.String GET_TASKS = "android.permission.GET_TASKS";
     field public static final java.lang.String GLOBAL_SEARCH = "android.permission.GLOBAL_SEARCH";

api/system-current.txt

@@ -95,6 +95,7 @@ package android {
     field public static final java.lang.String FORCE_BACK = "android.permission.FORCE_BACK";
     field public static final java.lang.String FORCE_STOP_PACKAGES = "android.permission.FORCE_STOP_PACKAGES";
     field public static final java.lang.String GET_ACCOUNTS = "android.permission.GET_ACCOUNTS";
+    field public static final java.lang.String GET_ACCOUNTS_PRIVILEGED = "android.permission.GET_ACCOUNTS_PRIVILEGED";
     field public static final java.lang.String GET_APP_OPS_STATS = "android.permission.GET_APP_OPS_STATS";
     field public static final java.lang.String GET_PACKAGE_IMPORTANCE = "android.permission.GET_PACKAGE_IMPORTANCE";
     field public static final java.lang.String GET_PACKAGE_SIZE = "android.permission.GET_PACKAGE_SIZE";

core/res/AndroidManifest.xml

@@ -1746,6 +1746,10 @@
     <!-- ==================================== -->
     <eat-comment />
 
+    <!-- @SystemApi Allows access to the list of accounts in the Accounts Service. -->
+    <permission android:name="android.permission.GET_ACCOUNTS_PRIVILEGED"
+        android:protectionLevel="signature|privileged" />
+
     <!-- @SystemApi Allows applications to RW to diagnostic resources.
     <p>Not for use by third-party applications. -->
     <permission android:name="android.permission.DIAGNOSTIC"

services/core/java/com/android/server/accounts/AccountManagerService.java

@@ -3799,7 +3799,8 @@ private boolean isReadAccountsPermitted(int callingUid, String accountType) {
          * access accounts of the specified account.
          */
         boolean isPermitted =
-                isPermitted(callingUid, Manifest.permission.GET_ACCOUNTS);
+                isPermitted(callingUid, Manifest.permission.GET_ACCOUNTS,
+                        Manifest.permission.GET_ACCOUNTS_PRIVILEGED);
         boolean isAccountManagedByCaller = isAccountManagedByCaller(accountType, callingUid);
         Log.w(TAG, String.format(
                 "isReadAccountPermitted: isPermitted: %s, isAM: %s",