Turning AccountTypeManager into a "system" service.

It's really not a system service proper.  It just
uses the same API and the same dependency injection
mechanism as for system services.

Change-Id: I56e24e0f16642a5ab25e809ee12906d965845379
diff --git a/src/com/android/contacts/CallContactActivity.java b/src/com/android/contacts/CallContactActivity.java
index 76f0892..38e890d 100644
--- a/src/com/android/contacts/CallContactActivity.java
+++ b/src/com/android/contacts/CallContactActivity.java
@@ -18,7 +18,6 @@
 
 import com.android.contacts.interactions.PhoneNumberInteraction;
 
-import android.app.Activity;
 import android.app.Dialog;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnDismissListener;
@@ -31,7 +30,7 @@
  * An interstitial activity used when the user selects a QSB search suggestion using
  * a call button.
  */
-public class CallContactActivity extends Activity implements OnDismissListener {
+public class CallContactActivity extends ContactsActivity implements OnDismissListener {
 
     private PhoneNumberInteraction mPhoneNumberInteraction;