Filed by sheriff-o-matic@appspot.gserviceaccount.com on behalf of cmumford@chromium.org

Numerous net_unittests failing (flaky):

	failures:
	SSLClientSocketReadTest.Read_WithSynchronousError/0
	SSLClientSocketReadTest.Read_WithSynchronousError/1
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/2
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/3
	SSLClientSocketReadTest.Read/1
	SSLClientSocketReadTest.Read/0
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/6
	WebSocketEndToEndTest.TrailingWhitespace
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/8
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/9
	URLRequestTestFTP.FTPCacheURLCredentials
	SSLClientSocketReadTest.Read_WithZeroReturn/0
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/7
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/12
	SSLClientSocketReadTest.Read_Interrupted/0
	SSLClientSocketReadTest.Read_Interrupted/1
	URLRequestTestFTP.FTPCheckWrongUserRestart
	SSLClientSocketReadTest.Read_WithAsyncZeroReturn/0
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/13
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/10
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/11
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/16
	OCSPVerify/HTTPSOCSPVerifyTest.VerifyResult/17
	SSLClientSocketReadTest.DumpMemoryStats/0
	SSLClientSocketReadTest.DumpMemoryStats/1
	URLRequestTestFTP.FTPCheckWrongUser
	SSLClientSocketReadTest.Read_FullDuplex/0
	URLRequestTestFTP.RawBodyBytes
	SSLClientSocketReadTest.Read_FullDuplex/1
	SSLClientSocketReadTest.Read_WithFatalAlert/1
	... 32 more (62 total) ...

The actual cause appears to be:

  local_test_server_posix.cc(169)] Could not read server_data_len

which is this method:

   LocalTestServer::WaitToStart()

And without the local test server all dependant tests fail.

Builders failed on: 
- Mac10.10 Tests: 
  https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac10.10%20Tests

Roughly every 8th to 10th build fails. This seems to have dramatically increased in frequency on or about:

  2018-07-21 7:21 PM (PDT) 3a3b1a962e3eda00c51f359e59aa97ed4808bbae

LogDog doesn't preserve logs very log so can't say for sure the cause of older failures.