Remove uses of base::hash_map from //chrome

chrome/browser/android/data_usage/data_use_tab_model.h

 // Copyright 2015 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_ANDROID_DATA_USAGE_DATA_USE_TAB_MODEL_H_
 #define CHROME_BROWSER_ANDROID_DATA_USAGE_DATA_USE_TAB_MODEL_H_
 
 #include <stddef.h>
 
+#include <map>
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/callback_forward.h"
-#include "base/containers/hash_tables.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "chrome/browser/android/data_usage/tab_data_use_entry.h"
 #include "components/sessions/core/session_id.h"
 #include "url/gurl.h"
 
@@ skipping 205 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(DataUseTabModelTest, ObserverStartEndEvents);
   FRIEND_TEST_ALL_PREFIXES(DataUseTabModelTest,
                            ProcessBufferedNavigationEventsAfterRuleFetch);
   FRIEND_TEST_ALL_PREFIXES(DataUseTabModelTest, TabCloseEvent);
   FRIEND_TEST_ALL_PREFIXES(DataUseTabModelTest, TabCloseEventEndsTracking);
   FRIEND_TEST_ALL_PREFIXES(DataUseTabModelTest,
                            UnexpiredTabEntryRemovaltimeHistogram);
   FRIEND_TEST_ALL_PREFIXES(ExternalDataUseObserverTest,
                            MatchingRuleFetchOnControlAppInstall);
 
-  typedef base::hash_map<SessionID::id_type, TabDataUseEntry> TabEntryMap;
+  using TabEntryMap = std::map<SessionID::id_type, TabDataUseEntry>;
 
   // Gets the current label of a tab, and the new label if a navigation event
   // occurs in the tab. |tab_id| is the source tab of the generated event,
   // |transition| indicates the type of the UI event/transition,  |url| is the
   // URL in the source tab, |package| indicates the android package name of
   // external application that initiated the event. |navigation_entry| which can
   // be null is the navigation entry of the current navigation in back-forward
   // history. |current_label|, |new_label| and |is_package_match| should not be
   // null, and are set with current and new labels respectively. |current_label|
   // will be set to empty string, if there is no active tracking session.
@@ skipping 68 matching lines @@
   base::WeakPtrFactory<DataUseTabModel> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DataUseTabModel);
 };
 
 }  // namespace android
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_ANDROID_DATA_USAGE_DATA_USE_TAB_MODEL_H_