Fix a flaky EndToEndTest where packet loss is possible with a large

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 639 matching lines @@
   GenerateBody(&body, 10240);
 
   HTTPMessage request(HttpConstants::HTTP_1_1,
                       HttpConstants::POST, "/foo");
   request.AddBody(body, true);
 
   EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
   VerifyCleanConnection(true);
 }
 
-// TODO(rtenneti): DISABLED_LargePostLargeBuffer seems to be flaky.
-// http://crbug.com/370087.
-TEST_P(EndToEndTest, DISABLED_LargePostLargeBuffer) {
+TEST_P(EndToEndTest, LargePostSmallBandwidthLargeBuffer) {
   ASSERT_TRUE(Initialize());
   SetPacketSendDelay(QuicTime::Delta::FromMicroseconds(1));
-  // 256KB per second with a 128k buffer from server to client.  Wireless
+  // 256KB per second with a 256k buffer from server to client.  Wireless
   // clients commonly have larger buffers, but our max CWND is 200.
   server_writer_->set_max_bandwidth_and_buffer_size(
-      QuicBandwidth::FromBytesPerSecond(256 * 1024), 128 * 1024);
+      QuicBandwidth::FromBytesPerSecond(256 * 1024), 256 * 1024);
 
   client_->client()->WaitForCryptoHandshakeConfirmed();
 
   // 1 MB body.
   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));
+  // This connection will not drop packets, because the buffer size is larger
+  // than the default receive window.
   VerifyCleanConnection(false);
 }
 
 TEST_P(EndToEndTest, InvalidStream) {
   ASSERT_TRUE(Initialize());
   client_->client()->WaitForCryptoHandshakeConfirmed();
 
   string body;
   GenerateBody(&body, kMaxPacketSize);
 
@@ skipping 368 matching lines @@
   QuicSession* session = dispatcher->session_map().begin()->second;
   EXPECT_EQ(kClientIFCW,
             session->config()->ReceivedInitialFlowControlWindowBytes());
   server_thread_->Resume();
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace tools
 }  // namespace net