Use Mojo pipes to signal sync IPC events

ipc/ipc.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'ipc.gypi',
   ],
   'targets': [
     {
       'target_name': 'ipc',
       'type': '<(component)',
       'variables': {
         'ipc_target': 1,
       },
       'dependencies': [
         '../base/base.gyp:base',
         # TODO(viettrungluu): Needed for base/lazy_instance.h, which is suspect.
         '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
+        '../mojo/mojo_edk.gyp:mojo_system_impl',
+        '../mojo/mojo_public.gyp:mojo_cpp_bindings',
+        '../mojo/mojo_public.gyp:mojo_cpp_system',
       ],
       # TODO(gregoryd): direct_dependent_settings should be shared with the
       # 64-bit target, but it doesn't work due to a bug in gyp
       'direct_dependent_settings': {
         'include_dirs': [
           '..',
         ],
       },
       'conditions': [
         ['OS == "win" or OS == "mac"', {
@@ skipping 206 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'ipc_tests.isolate',
           ],
         },
       ],
     }],
   ],
 }