Declare that Camera2 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: Icaad30144192b13df87726445e19c37e0fd824bf
(cherry picked from commit 2cd1529cd3ae0aa03e9e28d20b07ac072fc065c0)
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 076863d..07647ae 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -47,7 +47,8 @@
         android:largeHeap="true"
         android:restoreAnyVersion="true"
         android:supportsRtl="true"
-        android:theme="@style/Theme.Camera" >
+        android:theme="@style/Theme.Camera"
+        android:usesCleartextTraffic="false" >
         <activity
             android:name="com.android.camera.CameraActivity"
             android:clearTaskOnLaunch="true"