Add ManagedUserService for profile-specific managed user data.

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 7ba5e26ad705d7a0ed2aab8066f303e8bd8e6332..7d035a624e9a9da03aafe4105433617f4c6ddff7 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1007,6 +1007,10 @@
         'browser/managed_mode/managed_mode_site_list.h',
         'browser/managed_mode/managed_mode_url_filter.cc',
         'browser/managed_mode/managed_mode_url_filter.h',
+        'browser/managed_mode/managed_user_service.cc',
+        'browser/managed_mode/managed_user_service.h',
+        'browser/managed_mode/managed_user_service_factory.cc',
+        'browser/managed_mode/managed_user_service_factory.h',
         'browser/media/media_capture_devices_dispatcher.cc',
         'browser/media/media_capture_devices_dispatcher.h',
         'browser/media/media_internals.cc',
@@ -2807,7 +2811,6 @@
             ['exclude', '^browser/first_run/'],
             ['include', '^browser/first_run/first_run.cc'], # For ctor/dtor of a struct.
             ['exclude', '^browser/importer/'],
-            ['exclude', '^browser/managed_mode/'],
             ['exclude', '^browser/service/'],
             ['exclude', '^browser/speech/'],
             ['exclude', '^browser/sync/glue/app_'],
@@ -2990,6 +2993,11 @@
             'browser/notifications/message_center_notification_manager.h',
           ],
         }],
+        ['enable_managed_users!=1', {
+          'sources/': [
+            ['exclude', '^browser/managed_mode/'],
+          ]
+        }],
       ],
       'target_conditions': [
         # Need 'target_conditions' to override default filename_rules to include