Move IActivityManager to aidl.

Bug: 30977067
Test: Existing tests are passing, dump commands still working.
Change-Id: I9cf81c4d381ebce14a6c701e409cbb269f2ff1fb
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 6167671..8bb0e1a 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -100,11 +100,10 @@
 import android.app.AppGlobals;
 import android.app.AppOpsManager;
 import android.app.IActivityContainerCallback;
-import android.app.IActivityManager;
-import android.app.IActivityManager.WaitResult;
 import android.app.ProfilerInfo;
 import android.app.ResultInfo;
 import android.app.StatusBarManager;
+import android.app.WaitResult;
 import android.app.admin.IDevicePolicyManager;
 import android.content.ComponentName;
 import android.content.Context;
@@ -317,10 +316,10 @@
     final ArrayList<ActivityRecord> mWaitingVisibleActivities = new ArrayList<>();
 
     /** List of processes waiting to find out about the next visible activity. */
-    final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible = new ArrayList<>();
+    final ArrayList<WaitResult> mWaitingActivityVisible = new ArrayList<>();
 
     /** List of processes waiting to find out about the next launched activity. */
-    final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched = new ArrayList<>();
+    final ArrayList<WaitResult> mWaitingActivityLaunched = new ArrayList<>();
 
     /** List of activities that are ready to be stopped, but waiting for the next activity to
      * settle down before doing so. */