HttpsURLConnection: fix getHostnameVerifier

With current behaviour, we could get two different hostname verifiers
in calls to getHostnameVerifier if setDefaultHostnameVerifier is
called between them.

This error was introduced a couple days ago in:
367ce1a3f93c14cb5bc9811b8a5337f4f9c4c624

(cherry picked from commit 7de55fb0bb5e67e11f119c84f3b7029bbabad787)

Change-Id: I29077c745e377691a2458e37a0dee1461f2c53ff
1 file changed