Initialize HttpNetworkSession::Params member after r287408.

Review URL: https://codereview.chromium.org/445443002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287500 0039d316-1c4b-4281-b951-d872f2087c98

net/http/http_network_session.cc

@@ -68,6 +68,7 @@ HttpNetworkSession::Params::Params()
       network_delegate(NULL),
       net_log(NULL),
       host_mapping_rules(NULL),
+      enable_ssl_connect_job_waiting(false),
       ignore_certificate_errors(false),
       testing_fixed_http_port(0),
       testing_fixed_https_port(0),