Use pathPrefix filter instead of path for /btopp content

path is doing a full path match. It did not guard /btopp/
also fix a minor problem in tests/AndroidManifest.xml
bug 11148516

(cherry picked from commit 2819c1dbef39a712ab8adfcd36d2cb01f2379259)

Change-Id: I00b23e5c3a98422c2dd1cc220f2c121578ff5c8f
2 files changed