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

net/url_request/url_request_throttler_unittest.cc

Index: net/url_request/url_request_throttler_unittest.cc
diff --git a/net/url_request/url_request_throttler_unittest.cc b/net/url_request/url_request_throttler_unittest.cc
index 5f8f2eee720756de0181ef4dec9a66b9fd1f8f83..f6227b32ebabfbfec6c9a481b9ce5251b17180a7 100644
--- a/net/url_request/url_request_throttler_unittest.cc
+++ b/net/url_request/url_request_throttler_unittest.cc
@@ -325,8 +325,13 @@ TEST_F(URLRequestThrottlerEntryTest, MalformedContent) {
   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);
 }