Convert SigninTracker to use OAuth2TokenService notifications

chrome/browser/ui/sync/one_click_signin_sync_starter_unittest.cc

Index: chrome/browser/ui/sync/one_click_signin_sync_starter_unittest.cc
diff --git a/chrome/browser/ui/sync/one_click_signin_sync_starter_unittest.cc b/chrome/browser/ui/sync/one_click_signin_sync_starter_unittest.cc
index 57820cbf8909416ac0f62a89f050d83136240d29..9adc92981d89c9b31626f47a3fcb909234b0ace3 100644
--- a/chrome/browser/ui/sync/one_click_signin_sync_starter_unittest.cc
+++ b/chrome/browser/ui/sync/one_click_signin_sync_starter_unittest.cc
@@ -13,6 +13,7 @@
 #include "chrome/browser/signin/signin_promo.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_profile.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
@@ -67,6 +68,8 @@ class OneClickSigninSyncStarterTest : public testing::Test {
     );
   }
 
+  content::TestBrowserThreadBundle thread_bundle_;
+
   scoped_ptr<TestingProfile> profile_;
 
   // Deletes itself when SigninFailed() or SigninSuccess() is called.