Calendar does not use cleartext network traffic.

This declares to the platform and tools that this app does not use
cleartext network traffic. The platform and tools will be blocking (on
best effort basis) attempts to use such traffic by this app. For
example, attempts to use HTTP (rather than HTTPS) will be blocked.

Bug: 19215516
Change-Id: Ib51bc0deeb2135f614f2170efd2a7c9dcd67316f
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1925d50..5673a3b 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -45,7 +45,8 @@
             android:taskAffinity="android.task.calendar"
             android:hardwareAccelerated="true"
             android:backupAgent="com.android.calendar.CalendarBackupAgent"
-            android:requiredAccountType="*" >
+            android:requiredAccountType="*"
+            android:usesCleartextTraffic="false" >
 
         <meta-data android:name="com.google.android.backup.api_key"
                 android:value="AEdPqrEAAAAIM256oVOGnuSel5QKDpL8je_T65ZI8rFnDinssA" />