Use of base::StringPairs appropriately in Mock_Http

net/http/mock_http_cache.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 "net/http/mock_http_cache.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
@@ skipping 465 matching lines @@
   int OpenNextEntry(disk_cache::Entry** next_entry,
                     const CompletionCallback& callback) override {
     return ERR_NOT_IMPLEMENTED;
   }
 };
 
 scoped_ptr<disk_cache::Backend::Iterator> MockDiskCache::CreateIterator() {
   return scoped_ptr<Iterator>(new NotImplementedIterator());
 }
 
-void MockDiskCache::GetStats(
-    std::vector<std::pair<std::string, std::string> >* stats) {
+void MockDiskCache::GetStats(base::StringPairs* stats) {
 }
 
 void MockDiskCache::OnExternalCacheHit(const std::string& key) {
 }
 
 void MockDiskCache::ReleaseAll() {
   EntryMap::iterator it = entries_.begin();
   for (; it != entries_.end(); ++it)
     it->second->Release();
   entries_.clear();
@@ skipping 158 matching lines @@
   if (!callback_.is_null()) {
     if (!fail_)
       backend_->reset(new MockDiskCache());
     CompletionCallback cb = callback_;
     callback_.Reset();
     cb.Run(Result());  // This object can be deleted here.
   }
 }
 
 }  // namespace net