Update from https://crrev.com/306655

net/quic/congestion_control/tcp_cubic_sender_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 <algorithm>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/quic/congestion_control/rtt_stats.h"
 #include "net/quic/congestion_control/tcp_cubic_sender.h"
@@ skipping 700 matching lines @@
   const QuicPacketCount kNumberOfPackets = 123;
   const int kBandwidthEstimateBytesPerSecond =
       kNumberOfPackets * kMaxPacketSize;
   cached_network_params.set_bandwidth_estimate_bytes_per_second(
       kBandwidthEstimateBytesPerSecond);
   cached_network_params.set_min_rtt_ms(1000);
 
   // Ensure that an old estimate is not used for bandwidth resumption.
   cached_network_params.set_timestamp(clock_.WallNow().ToUNIXSeconds() -
                                       (kNumSecondsPerHour + 1));
-  sender_->ResumeConnectionState(cached_network_params);
+  EXPECT_FALSE(sender_->ResumeConnectionState(cached_network_params));
   EXPECT_EQ(10u, sender_->congestion_window());
 
   // If the estimate is new enough, make sure it is used.
   cached_network_params.set_timestamp(clock_.WallNow().ToUNIXSeconds() -
                                       (kNumSecondsPerHour - 1));
-  sender_->ResumeConnectionState(cached_network_params);
+  EXPECT_TRUE(sender_->ResumeConnectionState(cached_network_params));
   EXPECT_EQ(kNumberOfPackets, sender_->congestion_window());
+
+  // Resumed CWND is limited to be in a sensible range.
+  cached_network_params.set_bandwidth_estimate_bytes_per_second(
+      (kMaxTcpCongestionWindow + 1) * kMaxPacketSize);
+  EXPECT_TRUE(sender_->ResumeConnectionState(cached_network_params));
+  EXPECT_EQ(kMaxTcpCongestionWindow, sender_->congestion_window());
+
+  cached_network_params.set_bandwidth_estimate_bytes_per_second(
+      (kMinCongestionWindowForBandwidthResumption - 1) * kMaxPacketSize);
+  EXPECT_TRUE(sender_->ResumeConnectionState(cached_network_params));
+  EXPECT_EQ(kMinCongestionWindowForBandwidthResumption,
+            sender_->congestion_window());
 }
 
 }  // namespace test
 }  // namespace net