Comment out flaky test expectation while the root cause is investigated.

net/tools/quic/end_to_end_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <string>
 #include <sys/epoll.h>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 433 matching lines @@
   string body;
   GenerateBody(&body, 1024 * 1024);
 
   HTTPMessage request(HttpConstants::HTTP_1_1,
                       HttpConstants::POST, "/foo");
   request.AddBody(body, true);
 
   EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
   QuicConnectionStats stats =
       client_->client()->session()->connection()->GetStats();
-  // TODO(rtenneti): Enable packets_lost check after bug(12887145) is fixed.
+  // TODO(ianswett): Restore the packets_lost expectation when fixing b/12887145
   // EXPECT_EQ(0u, stats.packets_lost);
-  // EXPECT_EQ(0u, stats.rto_count);
+  EXPECT_EQ(0u, stats.rto_count);
 }
 
 TEST_P(EndToEndTest, LargePostNoPacketLoss1sRTT) {
   ASSERT_TRUE(Initialize());
   SetPacketSendDelay(QuicTime::Delta::FromMilliseconds(1000));
 
   client_->client()->WaitForCryptoHandshakeConfirmed();
 
   // 1 Mb body.
   string body;
@@ skipping 425 matching lines @@
   client_->SendSynchronousRequest("/bar");
 
   EXPECT_EQ(QUIC_STREAM_CONNECTION_ERROR, client_->stream_error());
   EXPECT_EQ(QUIC_ERROR_MIGRATING_ADDRESS, client_->connection_error());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace tools
 }  // namespace net