Combine and make const RequiresValidation() and ConditionalizeRequest().

net/http/http_transaction_test_util.cc

 // Copyright 2014 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 "net/http/http_transaction_test_util.h"
 
 #include <algorithm>
 #include <unordered_map>
 #include <utility>
 
@@ skipping 470 matching lines @@
 void MockNetworkTransaction::SetBeforeHeadersSentCallback(
     const BeforeHeadersSentCallback& callback) {}
 
 int MockNetworkTransaction::ResumeNetworkStart() {
   // Should not get here.
   return ERR_FAILED;
 }
 
 void MockNetworkTransaction::GetConnectionAttempts(
     ConnectionAttempts* out) const {
-  NOTIMPLEMENTED();
+  // A mock transaction makes no connection attempts.
+  return;
 }
 
 void MockNetworkTransaction::CallbackLater(const CompletionCallback& callback,
                                            int result) {
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&MockNetworkTransaction::RunCallback,
                             weak_factory_.GetWeakPtr(), callback, result));
 }
 
 void MockNetworkTransaction::RunCallback(const CompletionCallback& callback,
@@ skipping 76 matching lines @@
       content.append(buf->data(), rv);
     else if (rv < 0)
       return rv;
   } while (rv > 0);
 
   result->swap(content);
   return OK;
 }
 
 }  // namespace net