Revert of Convert //net and //chromecast to std::unordered_*

net/base/address_tracker_linux.h

 // 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.
 
 #ifndef NET_BASE_ADDRESS_TRACKER_LINUX_H_
 #define NET_BASE_ADDRESS_TRACKER_LINUX_H_
 
 #include <sys/socket.h>  // Needed to include netlink.
 // Mask superfluous definition of |struct net|. This is fixed in Linux 2.6.38.
 #define net net_kernel
 #include <linux/rtnetlink.h>
 #undef net
 #include <stddef.h>
 
 #include <map>
-#include <unordered_set>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
+#include "base/containers/hash_tables.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
 #include "net/base/ip_address.h"
 #include "net/base/network_change_notifier.h"
 
 namespace net {
 namespace internal {
@@ skipping 14 matching lines @@
   // Tracking version constructor: it will run |address_callback| when
   // the AddressMap changes, |link_callback| when the list of online
   // links changes, and |tunnel_callback| when the list of online
   // tunnels changes.
   // |ignored_interfaces| is the list of interfaces to ignore.  Changes to an
   // ignored interface will not cause any callback to be run. An ignored
   // interface will not have entries in GetAddressMap() and GetOnlineLinks().
   // NOTE: Only ignore interfaces not used to connect to the internet. Adding
   // interfaces used to connect to the internet can cause critical network
   // changed signals to be lost allowing incorrect stale state to persist.
-  AddressTrackerLinux(
-      const base::Closure& address_callback,
-      const base::Closure& link_callback,
-      const base::Closure& tunnel_callback,
-      const std::unordered_set<std::string>& ignored_interfaces);
+  AddressTrackerLinux(const base::Closure& address_callback,
+                      const base::Closure& link_callback,
+                      const base::Closure& tunnel_callback,
+                      const base::hash_set<std::string>& ignored_interfaces);
   ~AddressTrackerLinux() override;
 
   // In tracking mode, it starts watching the system configuration for
   // changes. The current thread must have a MessageLoopForIO. In
   // non-tracking mode, once Init() returns, a snapshot of the system
   // configuration is available through GetOnlineLinks() and
   // GetAddressMap().
   void Init();
 
   AddressMap GetAddressMap() const;
 
   // Returns set of interface indicies for online interfaces.
-  std::unordered_set<int> GetOnlineLinks() const;
+  base::hash_set<int> GetOnlineLinks() const;
 
   // Implementation of NetworkChangeNotifierLinux::GetCurrentConnectionType().
   // Safe to call from any thread, but will block until Init() has completed.
   NetworkChangeNotifier::ConnectionType GetCurrentConnectionType();
 
   // Returns the name for the interface with interface index |interface_index|.
   // |buf| should be a pointer to an array of size IFNAMSIZ. The returned
   // pointer will point to |buf|. This function acts like if_indextoname which
   // cannot be used as net/if.h cannot be mixed with linux/if.h. We'll stick
   // with exclusively talking to the kernel and not the C library.
@@ skipping 72 matching lines @@
   base::Closure tunnel_callback_;
 
   int netlink_fd_;
   base::MessageLoopForIO::FileDescriptorWatcher watcher_;
 
   mutable base::Lock address_map_lock_;
   AddressMap address_map_;
 
   // Set of interface indices for links that are currently online.
   mutable base::Lock online_links_lock_;
-  std::unordered_set<int> online_links_;
+  base::hash_set<int> online_links_;
 
   // Set of interface names that should be ignored.
-  const std::unordered_set<std::string> ignored_interfaces_;
+  const base::hash_set<std::string> ignored_interfaces_;
 
   base::Lock connection_type_lock_;
   bool connection_type_initialized_;
   base::ConditionVariable connection_type_initialized_cv_;
   NetworkChangeNotifier::ConnectionType current_connection_type_;
   bool tracking_;
   int threads_waiting_for_connection_type_initialization_;
 
   // Used to verify single-threaded access in non-tracking mode.
   base::ThreadChecker thread_checker_;
 };
 
 }  // namespace internal
 }  // namespace net
 
 #endif  // NET_BASE_ADDRESS_TRACKER_LINUX_H_