If customization includes default wallpaper, download and apply it.

chrome/browser/chromeos/customization_document.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_CUSTOMIZATION_DOCUMENT_H_
 #define CHROME_BROWSER_CHROMEOS_CUSTOMIZATION_DOCUMENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 26 matching lines @@
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 // This test is in global namespace so it must be declared here.
 void Test__InitStartupCustomizationDocument(const std::string& manifest);
 
 namespace chromeos {
 
 class ServicesCustomizationExternalLoader;
+class CustomizationWallpaperDownloader;
 
 namespace system {
 class StatisticsProvider;
 }  // system
 
 // Base class for OEM customization document classes.
 class CustomizationDocument {
  public:
   virtual ~CustomizationDocument();
 
@@ skipping 106 matching lines @@
   // Returns default wallpaper URL.
   GURL GetDefaultWallpaperUrl() const;
 
   // Returns list of default apps.
   bool GetDefaultApps(std::vector<std::string>* ids) const;
 
   // Creates an extensions::ExternalLoader that will provide OEM default apps.
   // Cache of OEM default apps stored in profile preferences.
   extensions::ExternalLoader* CreateExternalLoader(Profile* profile);
 
+  // This is also used by Wallpaper manager to set customized wallpaper path
+  // to global default before first wallpaper was shown.
+  static base::FilePath GetCustomizedWallpaperCacheDir();
+  static base::FilePath GetCustomizedWallpaperDownloadedFileName();
+
  private:
   friend struct DefaultSingletonTraits<ServicesCustomizationDocument>;
+  friend class CustomizationWallpaperDownloader;
 
   typedef std::vector<base::WeakPtr<ServicesCustomizationExternalLoader> >
       ExternalLoaders;
 
   // C-tor for singleton construction.
   ServicesCustomizationDocument();
 
   // C-tor for test construction.
   explicit ServicesCustomizationDocument(const std::string& manifest);
 
@@ skipping 20 matching lines @@
   // Method called when manifest was successfully loaded.
   void OnManifestLoaded();
 
   // Returns list of default apps in ExternalProvider format.
   static scoped_ptr<base::DictionaryValue> GetDefaultAppsInProviderFormat(
       const base::DictionaryValue& root);
 
   // Update cached manifest for |profile|.
   void UpdateCachedManifest(Profile* profile);
 
+  // Set Shell default wallpaper to customized.
+  static void SetDefaultWallpaperPath(const GURL& wallpaper_url);
+
+  // This is called by CustomizationWallpaperDownloader to destroy self.
+  static void DestroyWallpaperDownloader();
+
+  // Start download of wallpaper image if need.
+  void StartOEMWallpaperDownload(const GURL& wallpaper_url);
+
+  // Check downloaded wallpaper and start download if needed.
+  void CheckAndApplyWallpaper();
+
+  // Intermediate function to pass the result of PathExists to ApplyWallpaper.
+  void OnCheckedWallpaperCacheExists(scoped_ptr<bool>);
+
+  // Called after downloaded wallpaper has been checked.
+  void ApplyWallpaper(bool default_wallpaper_file_exists);
+
   // Services customization manifest URL.
   GURL url_;
 
   // URLFetcher instance.
   scoped_ptr<net::URLFetcher> url_fetcher_;
 
   // Timer to retry fetching file if network is not available.
   base::OneShotTimer<ServicesCustomizationDocument> retry_timer_;
 
   // How many times we already tried to fetch customization manifest file.
   int num_retries_;
 
   // Manifest fetch is already in progress.
   bool fetch_started_;
 
   // Known external loaders.
   ExternalLoaders external_loaders_;
 
+  scoped_ptr<CustomizationWallpaperDownloader> wallpaper_downloader_;
+
+  // Tests can destroy singletons.
+  base::WeakPtrFactory<ServicesCustomizationDocument> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(ServicesCustomizationDocument);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CUSTOMIZATION_DOCUMENT_H_