Make the lifetime of wallpaper manager more clear.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_unittest.cc

 // Copyright 2013 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/ash/launcher/chrome_launcher_controller.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 34 matching lines @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/client/window_tree_client.h"
 #include "ui/base/models/menu_model.h"
 
 #if defined(OS_CHROMEOS)
 #include "ash/test/test_session_state_delegate.h"
 #include "ash/test/test_shell_delegate.h"
 #include "chrome/browser/apps/scoped_keep_alive.h"
 #include "chrome/browser/chromeos/login/users/fake_chrome_user_manager.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/ui/apps/chrome_app_delegate.h"
 #include "chrome/browser/ui/ash/launcher/app_window_launcher_controller.h"
 #include "chrome/browser/ui/ash/launcher/browser_status_monitor.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_util.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/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile_manager.h"
@@ skipping 711 matching lines @@
 
     ASSERT_TRUE(profile_manager_->SetUp());
 
     // AvatarMenu and multiple profiles works after user logged in.
     profile_manager_->SetLoggedIn(true);
 
     // Initialize the UserManager singleton to a fresh FakeUserManager instance.
     user_manager_enabler_.reset(new chromeos::ScopedUserManagerEnabler(
         new chromeos::FakeChromeUserManager));
 
+    // Initialize the WallpaperManager singleton.
+    chromeos::WallpaperManager::Initialize();
+
     // Initialize the rest.
     ChromeLauncherControllerTest::SetUp();
 
     // Get some base objects.
     session_delegate()->set_logged_in_users(2);
     shell_delegate_ = static_cast<ash::test::TestShellDelegate*>(
         ash::Shell::GetInstance()->delegate());
     shell_delegate_->set_multi_profiles_enabled(true);
   }
 
   void TearDown() override {
     ChromeLauncherControllerTest::TearDown();
     user_manager_enabler_.reset();
     for (ProfileToNameMap::iterator it = created_profiles_.begin();
          it != created_profiles_.end(); ++it)
       profile_manager_->DeleteTestingProfile(it->second);
+    chromeos::WallpaperManager::Shutdown();
 
     // A Task is leaked if we don't destroy everything, then run the message
     // loop.
     base::MessageLoop::current()->PostTask(FROM_HERE,
                                            base::MessageLoop::QuitClosure());
     base::MessageLoop::current()->Run();
   }
 
   // Creates a profile for a given |user_name|. Note that this class will keep
   // the ownership of the created object.
@@ skipping 1866 matching lines @@
 
   EXPECT_EQ(1, app_icon_loader->fetch_count());
   ASSERT_EQ(initial_size + 1, model_->items().size());
   EXPECT_TRUE(launcher_controller_->IsAppPinned("1"));
   EXPECT_FALSE(launcher_controller_->IsAppPinned("0"));
   EXPECT_EQ(ash::TYPE_APP_SHORTCUT, model_->items()[app_index].type);
 
   launcher_controller_->UnpinAppWithID("1");
   ASSERT_EQ(initial_size, model_->items().size());
 }