Fix logic for handling reports of malformed bodies. To end up counting

net/url_request/url_request_throttler_unittest.cc

 // Copyright (c) 2011 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 "base/memory/scoped_ptr.h"
 #include "base/pickle.h"
 #include "base/stringprintf.h"
 #include "base/string_number_conversions.h"
 #include "base/time.h"
 #include "net/base/test_completion_callback.h"
@@ skipping 307 matching lines @@
 }
 
 TEST_F(URLRequestThrottlerEntryTest, MalformedContent) {
   MockURLRequestThrottlerHeaderAdapter response_adapter(505);
   for (int i = 0; i < 5; ++i)
     entry_->UpdateWithResponse("", &response_adapter);
 
   TimeTicks release_after_failures = entry_->GetExponentialBackoffReleaseTime();
 
   // Inform the entry that a response body was malformed, which is supposed to
-  // increase the back-off time.
+  // increase the back-off time.  Note that we also submit a successful
+  // UpdateWithResponse to pair with ReceivedContentWasMalformed() since that
+  // is what happens in practice (if a body is received, then a non-500
+  // response must also have been received).
   entry_->ReceivedContentWasMalformed();
+  MockURLRequestThrottlerHeaderAdapter success_adapter(200);
+  entry_->UpdateWithResponse("", &success_adapter);
   EXPECT_GT(entry_->GetExponentialBackoffReleaseTime(), release_after_failures);
 }
 
 TEST_F(URLRequestThrottlerEntryTest, SlidingWindow) {
   int max_send = URLRequestThrottlerEntry::kDefaultMaxSendThreshold;
   int sliding_window =
       URLRequestThrottlerEntry::kDefaultSlidingWindowPeriodMs;
 
   TimeTicks time_1 = entry_->fake_time_now_ +
       TimeDelta::FromMilliseconds(sliding_window / 3);
@@ skipping 134 matching lines @@
   no_opt_out_entry->UpdateWithResponse("www.nike.com", &wrong_adapter);
   ExpectEntryAllowsAllOnErrorIfOptedOut(no_opt_out_entry, false);
 
   // A localhost entry should always be opted out.
   scoped_refptr<net::URLRequestThrottlerEntryInterface> localhost_entry =
       manager.RegisterRequestUrl(GURL("http://localhost/hello"));
   ExpectEntryAllowsAllOnErrorIfOptedOut(localhost_entry, true);
 }
 
 }  // namespace net