"typedef Foo Bar" -> "using Bar = Foo" in //mojo/edk/....

mojo/edk/system/channel_manager.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 MOJO_EDK_SYSTEM_CHANNEL_MANAGER_H_
 #define MOJO_EDK_SYSTEM_CHANNEL_MANAGER_H_
 
 #include <stdint.h>
 
 #include "base/callback_forward.h"
@@ skipping 16 matching lines @@
 
 namespace system {
 
 class Channel;
 class ChannelEndpoint;
 class ConnectionManager;
 class MessagePipeDispatcher;
 
 // IDs for |Channel|s managed by a |ChannelManager|. (IDs should be thought of
 // as specific to a given |ChannelManager|.) 0 is never a valid ID.
-typedef uint64_t ChannelId;
+using ChannelId = uint64_t;
 
 const ChannelId kInvalidChannelId = 0;
 
 // This class manages and "owns" |Channel|s (which typically connect to other
 // processes) for a given process. This class is thread-safe, except as
 // specifically noted.
 class MOJO_SYSTEM_IMPL_EXPORT ChannelManager {
  public:
   // |io_thread_task_runner| should be the |TaskRunner| for the I/O thread, on
   // which this channel manager will create all channels. Connection manager is
@@ skipping 107 matching lines @@
   // get rid of |ChannelInfo| (and just have ref pointers to |Channel|s).
   base::hash_map<ChannelId, ChannelInfo> channel_infos_;
 
   DISALLOW_COPY_AND_ASSIGN(ChannelManager);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_CHANNEL_MANAGER_H_