GN: Build rules and fixes for (almost) all mojo unittest targets

mojo/mojo_base.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.
 
 # Essential components (and their tests) that are needed to build
 # Chrome should be here.  Other components that are useful only in
 # Mojo land like mojo_shell should be in mojo.gyp.
 {
   'includes': [
     'mojo_public.gypi',
@@ skipping 33 matching lines @@
             'mojo_test_apk',
           ],
         }],
       ]
     },
     {
       'target_name': 'mojo_none',
       'type': 'none',
     },
     {
+      # GN version: //mojo/common/test:run_all_unittests
       'target_name': 'mojo_run_all_unittests',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../base/base.gyp:test_support_base',
         '../testing/gtest.gyp:gtest',
         'mojo_system_impl',
         'mojo_test_support',
         'mojo_test_support_impl',
       ],
@@ skipping 113 matching lines @@
         # hopefully be dead-stripped.
         'embedder/test_embedder.cc',
         'embedder/test_embedder.h',
       ],
       'all_dependent_settings': {
         # Ensures that dependent projects import the core functions on Windows.
         'defines': ['MOJO_USE_SYSTEM_IMPL'],
       }
     },
     {
+      # GN version: //mojo/system:mojo_system_unittests
       'target_name': 'mojo_system_unittests',
       'type': 'executable',
       'dependencies': [
         '../base/base.gyp:base',
         '../testing/gtest.gyp:gtest',
         'mojo_common_test_support',
         'mojo_system_impl',
       ],
       'sources': [
         'embedder/embedder_unittest.cc',
@@ skipping 19 matching lines @@
         'system/simple_dispatcher_unittest.cc',
         'system/test_utils.cc',
         'system/test_utils.h',
         'system/waiter_list_unittest.cc',
         'system/waiter_test_utils.cc',
         'system/waiter_test_utils.h',
         'system/waiter_unittest.cc',
       ],
     },
     {
+      # GN version: //mojo/common/test:test_support_impl
       'target_name': 'mojo_test_support_impl',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
       ],
       'sources': [
         'common/test/test_support_impl.cc',
         'common/test/test_support_impl.h',
       ],
     },
@@ skipping 21 matching lines @@
         'common/handle_watcher.cc',
         'common/handle_watcher.h',
         'common/message_pump_mojo.cc',
         'common/message_pump_mojo.h',
         'common/message_pump_mojo_handler.h',
         'common/time_helper.cc',
         'common/time_helper.h',
       ],
     },
     {
+      # GN version: //mojo/common/test:test_support
       'target_name': 'mojo_common_test_support',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../base/base.gyp:test_support_base',
         '../testing/gtest.gyp:gtest',
         'mojo_system_impl',
       ],
       'sources': [
         'common/test/multiprocess_test_helper.cc',
         'common/test/multiprocess_test_helper.h',
         'common/test/test_utils.h',
         'common/test/test_utils_posix.cc',
         'common/test/test_utils_win.cc',
       ],
     },
     {
+      # GN version: //mojo/common:mojo_common_unittests
       'target_name': 'mojo_common_unittests',
       'type': 'executable',
       'dependencies': [
         '../base/base.gyp:base',
         '../base/base.gyp:base_message_loop_tests',
         '../testing/gtest.gyp:gtest',
         '../url/url.gyp:url_lib',
         'mojo_cpp_bindings',
         'mojo_environment_chromium',
         'mojo_common_lib',
@@ skipping 284 matching lines @@
             'mojo_js_unittests.isolate',
           ],
           'sources': [
             'mojo_js_unittests.isolate',
           ],
         },
       ],
     }],
   ]
 }