Add cloud_print_unittests to the GN build.

build/gn_migration.gypi

 # Copyright (c) 2015 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.
 
 # This file defines three targets that we are using to
 # track the progress of the GYP->GN migration:
 #
 # If you run 'ninja gn_build gyp_remaining gyp_groups', and then
 # run 'ninja', the second ninja invocation should do nothing. This
 # indicates that everything built by a ninja build is in fact
@@ skipping 44 matching lines @@
         '../chrome/chrome.gyp:chromedriver_tests',
         '../chrome/chrome.gyp:chromedriver_unittests',
         '../chrome/chrome.gyp:interactive_ui_tests',
         '../chrome/chrome.gyp:load_library_perf_tests',
         '../chrome/chrome.gyp:performance_browser_tests',
         '../chrome/chrome.gyp:service_discovery_sniffer',
         '../chrome/chrome.gyp:sync_integration_tests',
         '../chrome/chrome.gyp:sync_performance_tests',
         '../chrome/chrome.gyp:unit_tests',
         '../chrome/tools/profile_reset/jtl_compiler.gyp:jtl_compiler',
+        '../cloud_print/cloud_print.gyp:cloud_print_unittests',
         '../components/components.gyp:network_hints_browser',
         '../components/components.gyp:policy_templates',
         '../components/components.gyp:webui_generator',
         '../components/components_tests.gyp:components_browsertests',
         '../components/components_tests.gyp:components_perftests',
         '../components/components_tests.gyp:components_unittests',
         '../components/nacl.gyp:nacl_loader_unittests',
         '../content/content.gyp:content_app_browser',
         '../content/content.gyp:content_app_child',
         '../content/content_shell_and_tests.gyp:content_browsertests',
@@ skipping 335 matching lines @@
           ],
         }],
       ],
     },
     {
       'target_name': 'gyp_remaining',
       'type': 'none',
       'conditions': [
         ['OS=="linux"', {
           'dependencies': [
-            '../cloud_print/cloud_print.gyp:cloud_print_unittests',
             '../third_party/webrtc/tools/tools.gyp:frame_analyzer',
             '../third_party/webrtc/tools/tools.gyp:rgba_to_i420_converter',
 
             # TODO(GYP) - list all of the examples explicitly.
             '../ppapi/ppapi_internal.gyp:*',
           ],
           'conditions': [
             ['disable_nacl==0 and disable_nacl_untrusted==0', {
               'dependencies': [
                 '../mojo/mojo_nacl.gyp:monacl_shell',  # TODO(GYP) This will be deleted; don't port
@@ skipping 66 matching lines @@
         'chromium_builder_perf',
         'chromium_builder_tests',
         'chromium_builder_webrtc',
         'chromium_gpu_builder',
         'chromium_gpu_debug_builder',
       ],
     },
   ]
 }