Make unit_tests compile in Mac GN

components/crash.gypi

 # Copyright 2013 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.
 
 {
   'targets': [
     {
       # GN version: //components/crash/core/browser
       'target_name': 'crash_core_browser',
       'type': 'static_library',
@@ skipping 94 matching lines @@
           # this target, crash_component_non_mac, which will be renamed
           # crash_component. crash_component_breakpad_mac_to_be_deleted will be
           # deleted.
           #
           # While this situation exists:
           #
           # Do not depend on this target directly! Depend on
           # crash_component_breakpad_mac_to_be_deleted for old Breakpad behavior on
           # all platforms, or preferably, depend on crash_component to get Breakpad
           # everywhere except for Mac, where you will get Crashpad.
+          #
+          # GN version: //components/crash/content/app:app_non_mac
           'target_name': 'crash_component_non_mac',
           'variables': {
             'conditions': [
               ['OS == "ios" or OS == "mac"', {
                 # On IOS there are no files compiled into the library, and we
                 # can't have libraries with zero objects.
                 # For now, the same applies to Mac OS X, until this target merges
                 # with crash_component.
                 'crash_component_target_type%': 'none',
               }, {
@@ skipping 88 matching lines @@
           ],
         },
         {
           # TODO(mark): https://crbug.com/466890: remove this target.
           #
           # This is a temporary target provided for Mac Breakpad users that have not
           # yet migrated to Crashpad (namely content_shell). This target will be
           # removed shortly and all consumers will be expected to use Crashpad as
           # the Mac crash-reporting client. See the comment in the
           # crash_component_non_mac target for more details.
+          #
+          # GN version: //components/crash/content/app:app_breakpad_mac_to_be_deleted
           'target_name': 'crash_component_breakpad_mac_to_be_deleted',
           'variables': {
             'conditions': [
               ['OS != "mac" ', {
                 # There are no source files on any platform but Mac OS X.
                 'crash_component_target_type%': 'none',
               }, {
                 'crash_component_target_type%': 'static_library',
               }],
             ],
@@ skipping 160 matching lines @@
                   ],
                 }],
               ],
             },
           ],
         }],
       ],
     }],
   ],
 }