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

net/tools/quic/test_tools/mock_epoll_server.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_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_
 #define NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
-#include <unordered_map>
-#include <unordered_set>
-
 #include "base/logging.h"
 #include "base/macros.h"
 #include "net/tools/epoll_server/epoll_server.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace net {
 namespace test {
 
 // Unlike the full MockEpollServer, this only lies about the time but lets
 // fd events operate normally.  Usefully when interacting with real backends
@@ skipping 24 matching lines @@
   }
 
  private:
   int64_t now_in_usec_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeTimeEpollServer);
 };
 
 class MockEpollServer : public FakeTimeEpollServer {
  public:  // type definitions
-  using EventQueue = std::unordered_multimap<int64_t, struct epoll_event>;
+  typedef base::hash_multimap<int64_t, struct epoll_event> EventQueue;
 
   MockEpollServer();
   ~MockEpollServer() override;
 
   // time_in_usec is the time at which the event specified
   // by 'ee' will be delivered. Note that it -is- possible
   // to add an event for a time which has already been passed..
   // .. upon the next time that the callbacks are invoked,
   // all events which are in the 'past' will be delivered.
   void AddEvent(int64_t time_in_usec, const struct epoll_event& ee) {
     event_queue_.insert(std::make_pair(time_in_usec, ee));
   }
 
   // Advances the virtual 'now' by advancement_usec,
   // and ensure that the next invocation of
   // WaitForEventsAndExecuteCallbacks goes no farther than
   // advancement_usec from the current time.
   void AdvanceByExactly(int64_t advancement_usec) {
     until_in_usec_ = NowInUsec() + advancement_usec;
     set_now_in_usec(NowInUsec() + advancement_usec);
   }
 
   // As above, except calls WaitForEventsAndExecuteCallbacks.
   void AdvanceByExactlyAndCallCallbacks(int64_t advancement_usec) {
     AdvanceByExactly(advancement_usec);
     WaitForEventsAndExecuteCallbacks();
   }
 
-  std::unordered_set<AlarmCB*>::size_type NumberOfAlarms() const {
+  base::hash_set<AlarmCB*>::size_type NumberOfAlarms() const {
     return all_alarms_.size();
   }
 
  protected:  // functions
   // These functions do nothing here, as we're not actually
   // using the epoll_* syscalls.
   void DelFD(int fd) const override {}
   void AddFD(int fd, int event_mask) const override {}
   void ModFD(int fd, int event_mask) const override {}
 
   // Replaces the epoll_server's epoll_wait_impl.
   int epoll_wait_impl(int epfd,
                       struct epoll_event* events,
                       int max_events,
                       int timeout_in_ms) override;
   void SetNonblocking(int fd) override {}
 
  private:  // members
   EventQueue event_queue_;
   int64_t until_in_usec_;
 
   DISALLOW_COPY_AND_ASSIGN(MockEpollServer);
 };
 
 }  // namespace test
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_TEST_TOOLS_MOCK_EPOLL_SERVER_H_