Fix bug 1829561 ("am profile" with bad filename kills process).

The am command is now the one that takes care of opening the target file,
handling the opened file descriptor to the process that will be profiled.
This allows you to send profile data to anywhere the shell can access, and
avoids any problems coming up from the target process trying to open the
file.
diff --git a/core/java/android/app/IApplicationThread.java b/core/java/android/app/IApplicationThread.java
index 029c650..c0bc2a0 100644
--- a/core/java/android/app/IApplicationThread.java
+++ b/core/java/android/app/IApplicationThread.java
@@ -25,6 +25,7 @@
 import android.content.pm.ServiceInfo;
 import android.content.res.Configuration;
 import android.os.Bundle;
+import android.os.ParcelFileDescriptor;
 import android.os.RemoteException;
 import android.os.IBinder;
 import android.os.IInterface;
@@ -92,7 +93,8 @@
     void scheduleLowMemory() throws RemoteException;
     void scheduleActivityConfigurationChanged(IBinder token) throws RemoteException;
     void requestPss() throws RemoteException;
-    void profilerControl(boolean start, String path) throws RemoteException;
+    void profilerControl(boolean start, String path, ParcelFileDescriptor fd)
+            throws RemoteException;
     void setSchedulingGroup(int group) throws RemoteException;
     
     String descriptor = "android.app.IApplicationThread";