Remove a use of stl_util in safe browsing.

components/safe_browsing_db/v4_get_hash_protocol_manager.h

 // Copyright 2016 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 COMPONENTS_SAFE_BROWSING_DB_V4_GET_HASH_PROTOCOL_MANAGER_H_
 #define COMPONENTS_SAFE_BROWSING_DB_V4_GET_HASH_PROTOCOL_MANAGER_H_
 
 // A class that implements Chrome's interface with the SafeBrowsing V4 protocol.
 //
 // The V4GetHashProtocolManager handles formatting and making requests of, and
 // handling responses from, Google's SafeBrowsing servers. The purpose of this
 // class is to get full hash matches from the SB server for the given set of
 // hash prefixes.
 
 #include <memory>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/threading/non_thread_safe.h"
 #include "base/time/default_clock.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "components/safe_browsing_db/safebrowsing.pb.h"
 #include "components/safe_browsing_db/util.h"
@@ skipping 104 matching lines @@
 
   // Resets the gethash error counter and multiplier.
   void ResetGetHashErrors();
 
   // Updates internal state for each GetHash response error, assuming that
   // the current time is |now|.
   void HandleGetHashError(const base::Time& now);
 
  private:
   // Map of GetHash requests to parameters which created it.
-  typedef base::hash_map<const net::URLFetcher*, FullHashCallback> HashRequests;
+  using HashRequests = base::hash_map<
+      const net::URLFetcher*,
+      std::pair<std::unique_ptr<net::URLFetcher>, FullHashCallback>>;
 
   // The factory that controls the creation of V4GetHashProtocolManager.
   // This is used by tests.
   static V4GetHashProtocolManagerFactory* factory_;
 
   // Current active request (in case we need to cancel) for updates or chunks
   // from the SafeBrowsing service. We can only have one of these outstanding
   // at any given time unlike GetHash requests, which are tracked separately.
   std::unique_ptr<net::URLFetcher> request_;
 
@@ skipping 35 matching lines @@
       net::URLRequestContextGetter* request_context_getter,
       const V4ProtocolConfig& config) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(V4GetHashProtocolManagerFactory);
 };
 
 }  // namespace safe_browsing
 
 #endif  // COMPONENTS_SAFE_BROWSING_DB_V4_GET_HASH_PROTOCOL_MANAGER_H_