Add ManagedUserTokenFetcher to fetch scoped-down tokens.

chrome/browser/managed_mode/managed_user_registration_service.cc

Index: chrome/browser/managed_mode/managed_user_registration_service.cc
diff --git a/chrome/browser/managed_mode/managed_user_registration_service.cc b/chrome/browser/managed_mode/managed_user_registration_service.cc
index a4c9eafd176acf63791acf0d13bc83856bd2133a..093d2d1f24e9b65a6b8dc074de2c9becc90f3575 100644
--- a/chrome/browser/managed_mode/managed_user_registration_service.cc
+++ b/chrome/browser/managed_mode/managed_user_registration_service.cc
@@ -9,11 +9,14 @@
 #include "base/prefs/pref_service.h"
 #include "base/rand_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/managed_mode/managed_user_refresh_token_fetcher.h"
 #include "chrome/browser/managed_mode/managed_user_service.h"
 #include "chrome/browser/managed_mode/managed_user_service_factory.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
+#include "chrome/browser/sync/glue/device_info.h"
 #include "chrome/common/pref_names.h"
 #include "components/user_prefs/pref_registry_syncable.h"
+#include "google_apis/gaia/gaia_urls.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_error_factory.h"
@@ -52,9 +55,11 @@ SyncData CreateLocalSyncData(const std::string& id,
 }  // namespace
 
 ManagedUserRegistrationService::ManagedUserRegistrationService(
-    PrefService* prefs)
+    PrefService* prefs,
+    scoped_ptr<ManagedUserRefreshTokenFetcher> token_fetcher)
     : weak_ptr_factory_(this),
       prefs_(prefs),
+      token_fetcher_(token_fetcher.Pass()),
       pending_managed_user_acknowledged_(false) {
   pref_change_registrar_.Init(prefs);
   pref_change_registrar_.Add(
@@ -103,7 +108,9 @@ void ManagedUserRegistrationService::Register(
   }
 
   callback_ = callback;
-  OnReceivedToken("abcdef");  // TODO(bauerb): This is a stub implementation.
+  browser_sync::DeviceInfo::CreateLocalDeviceInfo(
+      base::Bind(&ManagedUserRegistrationService::FetchToken,
+                 weak_ptr_factory_.GetWeakPtr(), name));
 }
 
 ProfileManager::CreateCallback
@@ -268,8 +275,24 @@ void ManagedUserRegistrationService::OnManagedUserAcknowledged(
   DispatchCallbackIfReady();
 }
 
-void ManagedUserRegistrationService::OnReceivedToken(const std::string& token) {
-  DCHECK(pending_managed_user_token_.empty());
+void ManagedUserRegistrationService::FetchToken(
+    const string16& name,
+    const browser_sync::DeviceInfo& device_info) {
+  token_fetcher_->Start(
+      pending_managed_user_id_, name, device_info.client_name(),
+      base::Bind(&ManagedUserRegistrationService::OnReceivedToken,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+void ManagedUserRegistrationService::OnReceivedToken(
+    const GoogleServiceAuthError& error,
+    const std::string& token) {
+  if (error.state() != GoogleServiceAuthError::NONE) {
+    DispatchCallback(error);
+    return;
+  }
+
+  DCHECK(!token.empty());
   pending_managed_user_token_ = token;
   DispatchCallbackIfReady();
 }