If customization includes default wallpaper, download and apply it.

chrome/browser/chromeos/login/wallpaper_manager_unittest.cc

Index: chrome/browser/chromeos/login/wallpaper_manager_unittest.cc
diff --git a/chrome/browser/chromeos/login/wallpaper_manager_unittest.cc b/chrome/browser/chromeos/login/wallpaper_manager_unittest.cc
index c47745631a58bfd68fef53bc63731ed414d7c342..05016218336130be0e9e601a642c8d0dfee93d13 100644
--- a/chrome/browser/chromeos/login/wallpaper_manager_unittest.cc
+++ b/chrome/browser/chromeos/login/wallpaper_manager_unittest.cc
@@ -20,6 +20,7 @@
 #include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
+#include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chromeos/chromeos_switches.h"
@@ -47,13 +48,8 @@ class WallpaperManagerTest : public test::AshTestBase {
     // Register an in-memory local settings instance.
     local_state_.reset(new TestingPrefServiceSimple);
     TestingBrowserProcess::GetGlobal()->SetLocalState(local_state_.get());
-    UserManager::RegisterPrefs(local_state_->registry());
-    // Wallpaper manager and user image managers prefs will be accessed by the
-    // unit-test as well.
-    UserImageManager::RegisterPrefs(local_state_->registry());
-    WallpaperManager::RegisterPrefs(local_state_->registry());
+    chrome::RegisterLocalState(local_state_->registry());
 
-    StartupUtils::RegisterPrefs(local_state_->registry());
     StartupUtils::MarkDeviceRegistered();
 
     ResetUserManager();
@@ -86,6 +82,14 @@ class WallpaperManagerTest : public test::AshTestBase {
     base::MessageLoop::current()->RunUntilIdle();
   }
 
+  const base::FilePath& GetWallpaperManagerGuestSmallFile() const {
+    return WallpaperManager::Get()->guest_default_small_wallpaper_file_;
+  }
+
+  const base::FilePath& GetWallpaperManagerGuestLargeFile() const {
+    return WallpaperManager::Get()->guest_default_large_wallpaper_file_;
+  }
+
  protected:
   CommandLine command_line_;
 
@@ -128,8 +132,14 @@ TEST_F(WallpaperManagerTest, GuestUserUseGuestWallpaper) {
   UserManager::Get()->UserLoggedIn(UserManager::kGuestUserName,
                                    UserManager::kGuestUserName, false);
   WaitAsyncWallpaperLoad();
-  EXPECT_FALSE(ash::Shell::GetInstance()->desktop_background_controller()->
-      SetDefaultWallpaper(true));
+  const base::FilePath& guest_wallpaper_small =
+      GetWallpaperManagerGuestSmallFile();
+  const base::FilePath& guest_wallpaper_large =
+      GetWallpaperManagerGuestLargeFile();
+  EXPECT_FALSE(
+      ash::Shell::GetInstance()
+          ->desktop_background_controller()
+          ->SetDefaultWallpaper(guest_wallpaper_small, guest_wallpaper_large));
 }
 
 class WallpaperManagerCacheTest : public test::AshTestBase {