Move the unit tests files side-by-side with the corresponding .cc files.

components/update_client.gypi

 # 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.
 
 {
   'targets': [
     {
       # GN version: //components/update_client
       'target_name': 'update_client',
       'type': 'static_library',
@@ skipping 65 matching lines @@
       'dependencies': [
         'update_client',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
       ],
 
       'include_dirs': [
         '..',
       ],
       'sources': [
-        'update_client/test/test_configurator.cc',
-        'update_client/test/test_configurator.h',
-        'update_client/test/test_installer.cc',
-        'update_client/test/test_installer.h',
-        'update_client/test/url_request_post_interceptor.cc',
-        'update_client/test/url_request_post_interceptor.h',
+        'update_client/test_configurator.cc',
+        'update_client/test_configurator.h',
+        'update_client/test_installer.cc',
+        'update_client/test_installer.h',
+        'update_client/url_request_post_interceptor.cc',
+        'update_client/url_request_post_interceptor.h',
       ],
     },
   ],
 }