Add a ChannelEndpointClient abstraction.

mojo/edk/mojo_edk.gyp

 # 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.
 
 {
   'includes': [
     '../mojo_variables.gypi',
   ],
   'targets': [
     {
@@ skipping 36 matching lines @@
         'embedder/simple_platform_shared_buffer.cc',
         'embedder/simple_platform_shared_buffer.h',
         'embedder/simple_platform_shared_buffer_posix.cc',
         'embedder/simple_platform_shared_buffer_win.cc',
         'embedder/simple_platform_support.cc',
         'embedder/simple_platform_support.h',
         'system/channel.cc',
         'system/channel.h',
         'system/channel_endpoint.cc',
         'system/channel_endpoint.h',
+        'system/channel_endpoint_client.h',
         'system/channel_endpoint_id.cc',
         'system/channel_endpoint_id.h',
         'system/channel_info.cc',
         'system/channel_info.h',
         'system/channel_manager.cc',
         'system/channel_manager.h',
         'system/configuration.cc',
         'system/configuration.h',
         'system/core.cc',
         'system/core.h',
@@ skipping 151 matching lines @@
         'mojo_edk.gyp:mojo_system_impl',
         'mojo_test_support_impl',
         '../public/mojo_public.gyp:mojo_test_support',
       ],
       'sources': [
         'test/run_all_perftests.cc',
       ],
     },
   ],
 }