Make CF net tests a content::BrowserMainParts.

net/base/net_test_suite.cc

Index: net/base/net_test_suite.cc
diff --git a/net/base/net_test_suite.cc b/net/base/net_test_suite.cc
index b3ee578cf339ca470bd398b29d98a15929adf910..e1081d0a8ccfdf802e4fd590dbe523f16b80d91d 100644
--- a/net/base/net_test_suite.cc
+++ b/net/base/net_test_suite.cc
@@ -45,6 +45,10 @@ void NetTestSuite::Shutdown() {
 void NetTestSuite::InitializeTestThread() {
   network_change_notifier_.reset(net::NetworkChangeNotifier::CreateMock());
 
+  InitializeTestThreadNoNetworkChangeNotifier();
+}
+
+void NetTestSuite::InitializeTestThreadNoNetworkChangeNotifier() {
   host_resolver_proc_ = new net::RuleBasedHostResolverProc(NULL);
   scoped_host_resolver_proc_.Init(host_resolver_proc_.get());
   // In case any attempts are made to resolve host names, force them all to