Revert of GetAccountIdFromProfile() should not return an empty account id if a valid profile is provided.

chrome/browser/signin/signin_error_notifier_ash_unittest.cc

Index: chrome/browser/signin/signin_error_notifier_ash_unittest.cc
diff --git a/chrome/browser/signin/signin_error_notifier_ash_unittest.cc b/chrome/browser/signin/signin_error_notifier_ash_unittest.cc
index f880440fd4f22490f7df7ece90ccbd8c0a978261..bd0fada6f5353a063553b7fc1c415a709119612b 100644
--- a/chrome/browser/signin/signin_error_notifier_ash_unittest.cc
+++ b/chrome/browser/signin/signin_error_notifier_ash_unittest.cc
@@ -34,11 +34,6 @@
 #include "ui/display/screen.h"
 #endif
 
-#if defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/login/users/mock_user_manager.h"
-#include "chrome/browser/chromeos/login/users/scoped_user_manager_enabler.h"
-#endif
-
 namespace ash {
 namespace test {
 
@@ -66,12 +61,6 @@
         new TestingProfileManager(TestingBrowserProcess::GetGlobal()));
     ASSERT_TRUE(profile_manager_->SetUp());
 
-#if defined(OS_CHROMEOS)
-    mock_user_manager_ = new chromeos::MockUserManager();
-    user_manager_enabler_.reset(
-        new chromeos::ScopedUserManagerEnabler(mock_user_manager_));
-#endif
-
     TestingBrowserProcess::GetGlobal();
     AshTestBase::SetUp();
 
@@ -114,10 +103,6 @@
   std::unique_ptr<TestingProfile> profile_;
   SigninErrorController* error_controller_;
   NotificationUIManager* notification_ui_manager_;
-#if defined(OS_CHROMEOS)
-  chromeos::MockUserManager* mock_user_manager_;  // Not owned.
-  std::unique_ptr<chromeos::ScopedUserManagerEnabler> user_manager_enabler_;
-#endif
 };
 
 TEST_F(SigninErrorNotifierTest, NoErrorAuthStatusProviders) {