p2p: Disable HttpServer.Basic flaky test.

A race condition on this test makes the curl clients request an URL
after the p2p-http-server process is started but before it opens the
server side socket, making the test fail.

TEST=make check doesn't run this test and shows the disabled test warning.
BUG=chromium:289444

Change-Id: If5a73e3684997f25a17629927ebcb3cef3c70083
Reviewed-on: https://chromium-review.googlesource.com/168970
Reviewed-by: David Zeuthen <zeuthen@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
diff --git a/server/http_server_unittest.cc b/server/http_server_unittest.cc
index 6ea343b..5e9e9ef 100644
--- a/server/http_server_unittest.cc
+++ b/server/http_server_unittest.cc
@@ -116,7 +116,7 @@
   DISALLOW_COPY_AND_ASSIGN(ClientThread);
 };
 
-TEST(HttpServer, Basic) {
+TEST(HttpServer, DISABLED_Basic) {
   FilePath testdir = SetupTestDir("http-server");
   StrictMock<MetricsLibraryMock> metrics_lib;