Remove stl_util's STLDeleteContainerPairFirstPointers.

chrome/browser/predictors/resource_prefetcher.h

 // 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.
 
 #ifndef CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCHER_H_
 #define CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCHER_H_
 
 #include <stddef.h>
 
+#include <algorithm>

[pasko, 2016/09/01 12:30:45]

nit: std::pair is in <utility>, including that would be preferable

 #include <list>
 #include <map>
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "base/threading/thread_checker.h"
 #include "chrome/browser/predictors/resource_prefetch_common.h"
 #include "net/url_request/redirect_info.h"
@@ skipping 127 matching lines @@
   };
 
   base::ThreadChecker thread_checker_;
   PrefetcherState state_;
   Delegate* const delegate_;
   ResourcePrefetchPredictorConfig const config_;
   NavigationID navigation_id_;
   PrefetchKeyType key_type_;
   std::unique_ptr<RequestVector> request_vector_;
 
-  std::map<net::URLRequest*, Request*> inflight_requests_;
+  std::map<net::URLRequest*,
+           std::pair<std::unique_ptr<net::URLRequest>, Request*>>
+      inflight_requests_;
   std::list<Request*> request_queue_;
   std::map<std::string, size_t> host_inflight_counts_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourcePrefetcher);
 };
 
 }  // namespace predictors
 
 #endif  // CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCHER_H_