Rework the device management backend implementation.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index ae66fe968fc15d0fdfccf2e48495ff3c0e8d4409..b5e8f051b408b13240f02fef13ab268832718d91 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -119,6 +119,7 @@
         'test/test_location_bar.h',
         'test/test_switches.cc',
         'test/test_switches.h',
+        'test/test_url_request_context_getter.h',
         'test/testing_pref_service.cc',
         'test/testing_pref_service.h',
         'test/testing_profile.cc',
@@ -1396,7 +1397,7 @@
         'browser/policy/device_token_fetcher_unittest.cc',
         'browser/policy/file_based_policy_provider_unittest.cc',
         'browser/policy/device_management_backend_impl_mock.h',
-        'browser/policy/device_management_backend_impl_unittest.cc',
+        'browser/policy/device_management_service_unittest.cc',
         'browser/policy/device_management_policy_cache_unittest.cc',
         'browser/policy/device_management_policy_provider_unittest.cc',
         'browser/policy/managed_prefs_banner_base_unittest.cc',
@@ -1625,8 +1626,6 @@
         'test/browser_with_test_window_test.cc',
         'test/browser_with_test_window_test.h',
         'test/data/resource.rc',
-        'test/device_management_test_util.cc',
-        'test/device_management_test_util.h',
         'test/file_test_utils.cc',
         'test/file_test_utils.h',
         'test/menu_model_test.cc',
@@ -2040,7 +2039,7 @@
         'browser/net/cookie_policy_browsertest.cc',
         'browser/net/ftp_browsertest.cc',
         'browser/policy/device_management_backend_impl_mock.h',
-        'browser/policy/device_management_backend_impl_browsertest.cc',
+        'browser/policy/device_management_service_browsertest.cc',
         'browser/popup_blocker_browsertest.cc',
         'browser/printing/print_dialog_cloud_uitest.cc',
         'browser/renderer_host/test/render_process_host_browsertest.cc',