Remove ConnectivityServiceTest signature perms use

To allow unit tests to run without platform certificates, remove
signature permission usage in ConnectivityServiceTest.

This mocks permission checks done in ConnectivityService for which the
test assumed that the permission was held, and mocks calls to
BatteryStatsManager. Calls to ActivityManagerService (through
PendingIntent) are done with shell permissions as the test uses real
PendingIntent mechanics.

Bug: 187935317
Test: atest FrameworksNetTests
Change-Id: If309d653ac2e9bbcf1b94bcee6336367289df359
diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index b9076e9..8b91a45 100644
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -1273,6 +1273,20 @@
         public boolean getCellular464XlatEnabled() {
             return NetworkProperties.isCellular464XlatEnabled().orElse(true);
         }
+
+        /**
+         * @see PendingIntent#intentFilterEquals
+         */
+        public boolean intentFilterEquals(PendingIntent a, PendingIntent b) {
+            return a.intentFilterEquals(b);
+        }
+
+        /**
+         * @see LocationPermissionChecker
+         */
+        public LocationPermissionChecker makeLocationPermissionChecker(Context context) {
+            return new LocationPermissionChecker(context);
+        }
     }
 
     public ConnectivityService(Context context) {
@@ -1340,7 +1354,7 @@
         mNetd = netd;
         mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
         mAppOpsManager = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE);
-        mLocationPermissionChecker = new LocationPermissionChecker(mContext);
+        mLocationPermissionChecker = mDeps.makeLocationPermissionChecker(mContext);
 
         // To ensure uid state is synchronized with Network Policy, register for
         // NetworkPolicyManagerService events must happen prior to NetworkPolicyManagerService
@@ -3918,7 +3932,7 @@
         for (Map.Entry<NetworkRequest, NetworkRequestInfo> entry : mNetworkRequests.entrySet()) {
             PendingIntent existingPendingIntent = entry.getValue().mPendingIntent;
             if (existingPendingIntent != null &&
-                    existingPendingIntent.intentFilterEquals(pendingIntent)) {
+                    mDeps.intentFilterEquals(existingPendingIntent, pendingIntent)) {
                 return entry.getValue();
             }
         }