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

chrome/browser/ui/browser_finder_chromeos_unittest.cc

 // Copyright (c) 2015 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.
 
 #include "chrome/browser/ui/browser_finder.h"
 
 #include "ash/shell.h"
 #include "ash/test/ash_test_helper.h"
 #include "ash/test/test_session_state_delegate.h"
 #include "base/macros.h"
-#include "chrome/browser/chromeos/login/users/scoped_user_manager_enabler.h"
 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
-#include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.h"
 #include "chrome/test/base/browser_with_test_window_test.h"
 #include "chrome/test/base/test_browser_window_aura.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile_manager.h"
 #include "components/signin/core/account_id/account_id.h"
-#include "components/user_manager/fake_user_manager.h"
-#include "components/user_manager/user.h"
 
 namespace test {
 
 namespace {
 
 const char kTestAccount1[] = "user1@test.com";
 const char kTestAccount2[] = "user2@test.com";
 
 }  // namespace
 
 class BrowserFinderChromeOSTest : public BrowserWithTestWindowTest {
  protected:
-  BrowserFinderChromeOSTest()
-      : multi_user_window_manager_(nullptr),
-        fake_user_manager_(new user_manager::FakeUserManager),
-        user_manager_enabler_(fake_user_manager_) {}
+  BrowserFinderChromeOSTest() : multi_user_window_manager_(nullptr) {}
 
   TestingProfile* CreateMultiUserProfile(const AccountId& account_id) {
     TestingProfile* profile =
         profile_manager_->CreateTestingProfile(account_id.GetUserEmail());
     GetUserWindowManager()->AddUser(profile);
-    const user_manager::User* user = fake_user_manager_->AddUser(account_id);
-    chromeos::ProfileHelper::Get()->SetProfileToUserMappingForTesting(
-        const_cast<user_manager::User*>(user));
     ash::test::AshTestHelper::GetTestSessionStateDelegate()->AddUser(
         account_id);
     return profile;
   }
 
   chrome::MultiUserWindowManagerChromeOS* GetUserWindowManager() {
     if (!multi_user_window_manager_) {
       multi_user_window_manager_ =
           new chrome::MultiUserWindowManagerChromeOS(test_account_id1_);
       multi_user_window_manager_->Init();
@@ skipping 34 matching lines @@
     return CreateMultiUserProfile(test_account_id1_);
   }
 
   void DestroyProfile(TestingProfile* test_profile) override {
     profile_manager_->DeleteTestingProfile(test_profile->GetProfileUserName());
   }
 
   TestingProfile* second_profile_;
   std::unique_ptr<TestingProfileManager> profile_manager_;
   chrome::MultiUserWindowManagerChromeOS* multi_user_window_manager_;
-  user_manager::FakeUserManager* fake_user_manager_;  // Not owned.
-  chromeos::ScopedUserManagerEnabler user_manager_enabler_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserFinderChromeOSTest);
 };
 
 TEST_F(BrowserFinderChromeOSTest, IncognitoBrowserMatchTest) {
   // GetBrowserCount() use kMatchAll to find all browser windows for profile().
   EXPECT_EQ(1u, chrome::GetBrowserCount(profile()));
   EXPECT_TRUE(chrome::FindAnyBrowser(profile(), true));
   EXPECT_TRUE(chrome::FindAnyBrowser(profile(), false));
   set_browser(nullptr);
@@ skipping 24 matching lines @@
   // Move the browser window to another user's desktop. Then no window should
   // be available for the current profile.
   GetUserWindowManager()->ShowWindowForUser(
       browser->window()->GetNativeWindow(), test_account_id2_);
   EXPECT_EQ(0u, chrome::GetBrowserCount(profile()));
   EXPECT_FALSE(chrome::FindAnyBrowser(profile(), true));
   EXPECT_FALSE(chrome::FindAnyBrowser(profile(), false));
 }
 
 }  // namespace test