Add API to retrieve memory used by running processes.

Change-Id: I9c1935c2ef3c78bd67ec4dfd811a1caaab4514c3
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index 8244645..7d9dd3a 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -281,7 +281,7 @@
     
     public void closeSystemDialogs(String reason) throws RemoteException;
     
-    public void getProcessMemoryInfo(int pid, Debug.MemoryInfo outInfo)
+    public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids)
             throws RemoteException;
     
     /*