diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 90bd32f..0327842 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -4891,9 +4891,9 @@
                 userId, false, ALLOW_FULL_ONLY, "startActivityInPackage", null);
 
         // TODO: Switch to user app stacks here.
-        int ret = mActivityStarter.startActivityMayWait(null, uid, callingPackage, intent,
-                resolvedType, null, null, resultTo, resultWho, requestCode, startFlags,
-                null, null, null, bOptions, false, userId, container, inTask, reason);
+        int ret = mActivityStarter.startActivityMayWait(null, uid, ActivityStarter.PID_NULL, uid,
+                callingPackage, intent, resolvedType, null, null, resultTo, resultWho, requestCode,
+                startFlags, null, null, null, bOptions, false, userId, container, inTask, reason);
         return ret;
     }
 
@@ -4914,13 +4914,20 @@
     final int startActivitiesInPackage(int uid, String callingPackage,
             Intent[] intents, String[] resolvedTypes, IBinder resultTo,
             Bundle bOptions, int userId) {
+        return startActivitiesInPackage(uid, ActivityStarter.PID_NULL, UserHandle.USER_NULL,
+                callingPackage, intents, resolvedTypes, resultTo, bOptions, userId);
+    }
+
+    final int startActivitiesInPackage(int uid, int realCallingPid, int realCallingUid,
+                                       String callingPackage, Intent[] intents, String[] resolvedTypes,
+                                       IBinder resultTo, Bundle bOptions, int userId) {
 
         final String reason = "startActivityInPackage";
         userId = mUserController.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
                 userId, false, ALLOW_FULL_ONLY, reason, null);
         // TODO: Switch to user app stacks here.
-        int ret = mActivityStarter.startActivities(null, uid, callingPackage, intents, resolvedTypes,
-                resultTo, bOptions, userId, reason);
+        int ret = mActivityStarter.startActivities(null, uid, realCallingPid, realCallingUid,
+                callingPackage, intents, resolvedTypes, resultTo, bOptions, userId, reason);
         return ret;
     }
 
diff --git a/services/core/java/com/android/server/am/ActivityStarter.java b/services/core/java/com/android/server/am/ActivityStarter.java
index a145435..7401fff 100644
--- a/services/core/java/com/android/server/am/ActivityStarter.java
+++ b/services/core/java/com/android/server/am/ActivityStarter.java
@@ -137,6 +137,8 @@
  * an activity and associated task and stack.
  */
 class ActivityStarter {
+    public static final int PID_NULL = 0;
+
     private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityStarter" : TAG_AM;
     private static final String TAG_RESULTS = TAG + POSTFIX_RESULTS;
     private static final String TAG_FOCUS = TAG + POSTFIX_FOCUS;
@@ -672,6 +674,20 @@
             ProfilerInfo profilerInfo, WaitResult outResult,
             Configuration globalConfig, Bundle bOptions, boolean ignoreTargetSecurity, int userId,
             IActivityContainer iContainer, TaskRecord inTask, String reason) {
+        return startActivityMayWait(caller, callingUid, PID_NULL, UserHandle.USER_NULL,
+             callingPackage, intent, resolvedType, voiceSession, voiceInteractor, resultTo,
+             resultWho, requestCode, startFlags, profilerInfo, outResult, globalConfig, bOptions,
+             ignoreTargetSecurity, userId, iContainer, inTask, reason);
+    }
+
+    final int startActivityMayWait(IApplicationThread caller, int callingUid,
+            int requestRealCallingPid, int requestRealCallingUid,
+            String callingPackage, Intent intent, String resolvedType,
+            IVoiceInteractionSession voiceSession, IVoiceInteractor voiceInteractor,
+            IBinder resultTo, String resultWho, int requestCode, int startFlags,
+            ProfilerInfo profilerInfo, WaitResult outResult,
+            Configuration globalConfig, Bundle bOptions, boolean ignoreTargetSecurity, int userId,
+            IActivityContainer iContainer, TaskRecord inTask, String reason) {
         // Refuse possible leaked file descriptors
         if (intent != null && intent.hasFileDescriptors()) {
             throw new IllegalArgumentException("File descriptors passed in Intent");
@@ -732,8 +748,14 @@
                 // Cannot start a child activity if the parent is not resumed.
                 return ActivityManager.START_CANCELED;
             }
-            final int realCallingPid = Binder.getCallingPid();
-            final int realCallingUid = Binder.getCallingUid();
+
+            final int realCallingPid = requestRealCallingPid != PID_NULL
+                ? requestRealCallingPid
+                : Binder.getCallingPid();
+            final int realCallingUid = requestRealCallingUid != UserHandle.USER_NULL
+                ? requestRealCallingUid
+                : Binder.getCallingUid();
+
             int callingPid;
             if (callingUid >= 0) {
                 callingPid = -1;
@@ -744,6 +766,7 @@
                 callingPid = callingUid = -1;
             }
 
+
             final ActivityStack stack;
             if (container == null || container.mStack.isOnHomeDisplay()) {
                 stack = mSupervisor.mFocusedStack;
@@ -890,6 +913,14 @@
     final int startActivities(IApplicationThread caller, int callingUid, String callingPackage,
             Intent[] intents, String[] resolvedTypes, IBinder resultTo,
             Bundle bOptions, int userId, String reason) {
+        return startActivities(caller, callingUid, PID_NULL, UserHandle.USER_NULL, callingPackage,
+             intents, resolvedTypes, resultTo, bOptions, userId, reason);
+    }
+
+    final int startActivities(IApplicationThread caller, int callingUid,
+            int incomingRealCallingPid, int incomingRealCallingUid, String callingPackage,
+            Intent[] intents, String[] resolvedTypes, IBinder resultTo,
+            Bundle bOptions, int userId, String reason) {
         if (intents == null) {
             throw new NullPointerException("intents is null");
         }
@@ -900,8 +931,13 @@
             throw new IllegalArgumentException("intents are length different than resolvedTypes");
         }
 
-        final int realCallingPid = Binder.getCallingPid();
-        final int realCallingUid = Binder.getCallingUid();
+        final int realCallingPid = incomingRealCallingPid != PID_NULL
+                     ? incomingRealCallingPid
+                     : Binder.getCallingPid();
+
+        final int realCallingUid = incomingRealCallingUid != UserHandle.USER_NULL
+                     ? incomingRealCallingUid
+                     : Binder.getCallingUid();
 
         int callingPid;
         if (callingUid >= 0) {
diff --git a/services/core/java/com/android/server/am/PendingIntentRecord.java b/services/core/java/com/android/server/am/PendingIntentRecord.java
index cad5dcf..62138ed 100644
--- a/services/core/java/com/android/server/am/PendingIntentRecord.java
+++ b/services/core/java/com/android/server/am/PendingIntentRecord.java
@@ -341,8 +341,9 @@
                                 }
                                 allIntents[allIntents.length-1] = finalIntent;
                                 allResolvedTypes[allResolvedTypes.length-1] = resolvedType;
-                                owner.startActivitiesInPackage(uid, key.packageName, allIntents,
-                                        allResolvedTypes, resultTo, options, userId);
+                                owner.startActivitiesInPackage(uid, callingPid, callingUid,
+                                        key.packageName, allIntents, allResolvedTypes, resultTo,
+                                        options, userId);
                             } else {
                                 owner.startActivityInPackage(uid, key.packageName, finalIntent,
                                         resolvedType, resultTo, resultWho, requestCode, 0,