Add browser test for CustomizationWallpaperDownloader.

chrome/browser/chromeos/customization_document.cc

 // Copyright (c) 2012 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/chromeos/customization_document.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 440 matching lines @@
 // static
 bool ServicesCustomizationDocument::WasOOBECustomizationApplied() {
   PrefService* prefs = g_browser_process->local_state();
   // prefs can be NULL in some tests.
   if (prefs)
     return prefs->GetBoolean(kServicesCustomizationAppliedPref);
   else
     return false;
 }
 
+CustomizationWallpaperDownloader*
+ServicesCustomizationDocument::GetWallpaperDownloaderForTesting() const {
+  return wallpaper_downloader_.get();
+}
+
 // static
 void ServicesCustomizationDocument::SetApplied(bool val) {
   PrefService* prefs = g_browser_process->local_state();
   // prefs can be NULL in some tests.
   if (prefs)
     prefs->SetBoolean(kServicesCustomizationAppliedPref, val);
 }
 
 // static
 base::FilePath ServicesCustomizationDocument::GetCustomizedWallpaperCacheDir() {
@@ skipping 489 matching lines @@
   apply_tasks_success_ += success;
 
   if (apply_tasks_started_ != apply_tasks_finished_)
     return;
 
   if (apply_tasks_success_ == apply_tasks_finished_)
     SetApplied(true);
 }
 
 }  // namespace chromeos