Moved URI grants code out of ActivityManagerService to its own service (13/n)

Allows for other services like window manager to call uri grants without
holding AM service lock.

Bug: 80414790
Test: Existing tests pass.
Change-Id: Ie5b4ddb19a2cedff09332dbeb56bcd9292fd18ac
diff --git a/services/core/java/com/android/server/am/ActivityTaskManagerService.java b/services/core/java/com/android/server/am/ActivityTaskManagerService.java
index 10e0182..77ad04c 100644
--- a/services/core/java/com/android/server/am/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityTaskManagerService.java
@@ -135,6 +135,7 @@
 import com.android.internal.app.IAppOpsService;
 import com.android.server.AppOpsService;
 import com.android.server.pm.UserManagerService;
+import com.android.server.uri.UriGrantsManagerInternal;
 import com.android.server.wm.ActivityTaskManagerInternal;
 import android.app.AppGlobals;
 import android.app.IActivityController;
@@ -259,6 +260,7 @@
     UiHandler mUiHandler;
     ActivityManagerService mAm;
     ActivityManagerInternal mAmInternal;
+    UriGrantsManagerInternal mUgmInternal;
     /* Global service lock used by the package the owns this service. */
     Object mGlobalLock;
     ActivityStackSupervisor mStackSupervisor;
@@ -612,6 +614,7 @@
 
     void onActivityManagerInternalAdded() {
         mAmInternal = LocalServices.getService(ActivityManagerInternal.class);
+        mUgmInternal = LocalServices.getService(UriGrantsManagerInternal.class);
     }
 
     protected ActivityStackSupervisor createStackSupervisor() {
@@ -3630,7 +3633,7 @@
                 throw new IllegalArgumentException("Activity does not exist; token="
                         + activityToken);
             }
-            return r.getUriPermissionsLocked().getExternalTokenLocked();
+            return r.getUriPermissionsLocked().getExternalToken();
         }
     }