Disable TestDTLSConnectWithSmallMtu on all platforms.

Other bots elsewhere are breaking on this test, my money is on that this
might be due to different SSL versions being used on the different bots.
This test fails on at least a couple of bots that has use_openssl=1.

R=kjellander@webrtc.org
TBR=henrike@webrtc.org
BUG=3910

Review URL: https://webrtc-codereview.appspot.com/25839004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7403 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/base/sslstreamadapter_unittest.cc b/webrtc/base/sslstreamadapter_unittest.cc
index 622e309..b9d477d 100644
--- a/webrtc/base/sslstreamadapter_unittest.cc
+++ b/webrtc/base/sslstreamadapter_unittest.cc
@@ -750,7 +750,8 @@
 };
 
 // Test a handshake with small MTU
-TEST_F(SSLStreamAdapterTestDTLS, DISABLED_ON_MAC(TestDTLSConnectWithSmallMtu)) {
+// Disabled due to https://code.google.com/p/webrtc/issues/detail?id=3910
+TEST_F(SSLStreamAdapterTestDTLS, DISABLED_TestDTLSConnectWithSmallMtu) {
   MAYBE_SKIP_TEST(HaveDtls);
   SetMtu(700);
   SetHandshakeWait(20000);