[Webview, Child Accounts] Automatically sign in to Chrome if needed.

components/supervised_user_error_page/supervised_user_error_page.h

 // Copyright 2016 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.
 
 #ifndef COMPONENTS_SUPERVISED_USER_ERROR_PAGE_SUPERVISED_USER_ERROR_PAGE_H_
 #define COMPONENTS_SUPERVISED_USER_ERROR_PAGE_SUPERVISED_USER_ERROR_PAGE_H_
 
 #include <string>
 
 namespace supervised_user_error_page {
 
+// A Java counterpart will be generated for this enum.
+// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.components.supervisedusererrorpage
 enum FilteringBehaviorReason {
-  DEFAULT,
-  ASYNC_CHECKER,
-  BLACKLIST,
-  MANUAL,
-  WHITELIST
+  DEFAULT = 0,
+  ASYNC_CHECKER = 1,
+  BLACKLIST = 2,
+  MANUAL = 3,
+  WHITELIST = 4,
+  NOT_SIGNED_IN = 5,
 };
 
 int GetBlockMessageID(
     supervised_user_error_page::FilteringBehaviorReason reason,
     bool is_child_account,
     bool single_parent);
 
 std::string BuildHtml(bool allow_access_requests,
                       const std::string& profile_image_url,
                       const std::string& profile_image_url2,
                       const std::string& custodian,
                       const std::string& custodian_email,
                       const std::string& second_custodian,
                       const std::string& second_custodian_email,
                       bool is_child_account,
                       FilteringBehaviorReason reason,
                       const std::string& app_locale);
 
 }  //  namespace supervised_user_error_page
 
 #endif // COMPONENTS_SUPERVISED_USER_ERROR_PAGE_SUPERVISED_USER_ERROR_PAGE_H_