[Password Manager] Switch password manager code to use the Feature framework.

components/password_manager/core/browser/password_manager_util.h

Index: components/password_manager/core/browser/password_manager_util.h
diff --git a/components/password_manager/core/browser/password_manager_util.h b/components/password_manager/core/browser/password_manager_util.h
index a148d6e6c27868495e55d460989ec94a961c2e30..0d500af4e34d26e66a916316db29331cea9570d7 100644
--- a/components/password_manager/core/browser/password_manager_util.h
+++ b/components/password_manager/core/browser/password_manager_util.h
@@ -17,6 +17,10 @@ namespace autofill {
 struct PasswordForm;
 }
 
+namespace base {
+class FeatureList;
+}
+
 namespace sync_driver {
 class SyncService;
 }
@@ -55,6 +59,10 @@ std::vector<scoped_ptr<autofill::PasswordForm>> ConvertScopedVector(
 // and required to always return non-null.
 bool IsLoggingActive(const password_manager::PasswordManagerClient* client);
 
+// Helper function to registers a field trial to override the enabled state of
+// the password manager features.
+void RegisterFieldTrials(base::FeatureList* feature_list);
+
 }  // namespace password_manager_util
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_UTIL_H_