Add *AsUser() calls where appropriate for multi-user support.

Although telecom always runs as system user, it binds to apps in the
user space and so needs to interact with apps with the current user
explicitly.  This change fixes areas that neglected to do that.

Bug: 27161171
Change-Id: I55a4f612c9b38d4e448c346173845a79a926c695
diff --git a/testapps/AndroidManifest.xml b/testapps/AndroidManifest.xml
index e645123..3e8fe5b 100644
--- a/testapps/AndroidManifest.xml
+++ b/testapps/AndroidManifest.xml
@@ -54,7 +54,7 @@
         <service android:name="com.android.server.telecom.testapps.TestInCallServiceImpl"
                  android:process="com.android.server.telecom.testapps.TestInCallService"
                  android:permission="android.permission.BIND_INCALL_SERVICE" >
-            <meta-data android:name="android.telecom.IN_CALL_SERVICE_CAR_MODE_UI" android:value="true" />
+            <meta-data android:name="android.telecom.IN_CALL_SERVICE_CAR_MODE_UI" android:value="true"/>
             <intent-filter>
                 <action android:name="android.telecom.InCallService"/>
             </intent-filter>