If customization includes default wallpaper, download and apply it.

chrome/browser/chromeos/login/wallpaper_manager.h

Index: chrome/browser/chromeos/login/wallpaper_manager.h
diff --git a/chrome/browser/chromeos/login/wallpaper_manager.h b/chrome/browser/chromeos/login/wallpaper_manager.h
index aed11eb96a21c8c064af59a89bea9d2af593a822..26c8c1c1f8d04f280d63ab4c42347b41cb33200c 100644
--- a/chrome/browser/chromeos/login/wallpaper_manager.h
+++ b/chrome/browser/chromeos/login/wallpaper_manager.h
@@ -72,6 +72,28 @@ extern const char kThumbnailWallpaperSubDir[];
 // OS device.
 class WallpaperManager: public content::NotificationObserver {
  public:
+  struct CustomizedWallpaperRescaledFiles {
+    CustomizedWallpaperRescaledFiles(
+        const base::FilePath& path_rescaled_original,
+        const base::FilePath& path_rescaled_small,
+        const base::FilePath& path_rescaled_large);
+
+    base::FilePath path_rescaled_original;
+    base::FilePath path_rescaled_small;
+    base::FilePath path_rescaled_large;
+  };
+
+  struct CustomizedWallpaperFilesExist {
+    CustomizedWallpaperFilesExist();
+
+    bool AllRescaledExist() const;
+
+    bool dowloaded;

[Daniel Erat, 2014/03/25 21:58:29]

s/dowloaded/downloaded/

[Alexander Alekseev, 2014/03/27 00:28:37]

Done.

+    bool rescaled_original;
+    bool rescaled_small;
+    bool rescaled_large;
+  };
+
   // For testing.
   class TestApi {
    public:
@@ -171,9 +193,7 @@ class WallpaperManager: public content::NotificationObserver {
   WallpaperManager();
   virtual ~WallpaperManager();
 
-  void set_command_line_for_testing(base::CommandLine* command_line) {
-    command_line_for_testing_ = command_line;
-  }
+  void set_command_line_for_testing(base::CommandLine* command_line);
 
   // Indicates imminent shutdown, allowing the WallpaperManager to remove any
   // observers it has registered.
@@ -229,7 +249,8 @@ class WallpaperManager: public content::NotificationObserver {
   // Resizes |wallpaper| to a resolution which is nearest to |preferred_width|
   // and |preferred_height| while maintaining aspect ratio. And saves the
   // resized wallpaper to |path|.
-  void ResizeAndSaveWallpaper(const UserImage& wallpaper,
+  // Result is true on success.
+  bool ResizeAndSaveWallpaper(const UserImage& wallpaper,
                               const base::FilePath& path,
                               ash::WallpaperLayout layout,
                               int preferred_width,
@@ -246,6 +267,12 @@ class WallpaperManager: public content::NotificationObserver {
                           const UserImage& wallpaper,
                           bool update_wallpaper);
 
+  // Use given files as new default wallpaper.
+  // Reloads current wallpaper, if old default was loaded.
+  void SetDefaultWallpaperPath(
+      const base::FilePath& customized_default_wallpaper_file_small,
+      const base::FilePath& customized_default_wallpaper_file_large);
+
   // Sets wallpaper to default wallpaper (asynchronously with zero delay).
   void SetDefaultWallpaperNow(const std::string& user_id);
 
@@ -305,9 +332,17 @@ class WallpaperManager: public content::NotificationObserver {
                        const std::string& user_id,
                        scoped_ptr<std::string> data);
 
+  // This is called from CustomizationDocument.
+  // scaled_directory - directory where resized versions are stored

[Daniel Erat, 2014/03/25 21:58:29]

this comment seems outdated

[Alexander Alekseev, 2014/03/27 00:28:37]

Done.

+  // (must be writable)
+  void SetCustomizedDefaultWallpaper(const GURL& wallpaper_url,
+                                     const base::FilePath& downloaded_file,
+                                     const base::FilePath& resized_directory);
  private:
   friend class TestApi;
   friend class WallpaperManagerBrowserTest;
+  friend class WallpaperManagerTest;
+
   typedef std::map<std::string, gfx::ImageSkia> CustomWallpaperMap;
 
   // Set |wallpaper| controlled by policy.
@@ -425,7 +460,9 @@ class WallpaperManager: public content::NotificationObserver {
                            const UserImage& wallpaper);
 
   // Saves wallpaper image raw |data| to |path| (absolute path) in file system.
-  void SaveWallpaperInternal(const base::FilePath& path, const char* data,
+  // True on success.
+  bool SaveWallpaperInternal(const base::FilePath& path,
+                             const char* data,
                              int size) const;
 
   // Creates new PendingWallpaper request (or updates currently pending).
@@ -462,6 +499,45 @@ class WallpaperManager: public content::NotificationObserver {
   // in zero delay.
   base::TimeDelta GetWallpaperLoadDelay() const;
 
+  // This is called after we check that supplied default wallpaper files exist.
+  void SetCustomizedDefaultWallpaperAfterCheck(
+      const GURL& wallpaper_url,
+      const base::FilePath& downloaded_file,
+      scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+      scoped_ptr<CustomizedWallpaperFilesExist> exist);
+
+  // Starts rescaling of customized wallpaper.
+  void OnCustomizedDefaultWallpaperDecoded(
+      const GURL& wallpaper_url,
+      scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+      const UserImage& user_image);
+
+  // Resize and save customized default wallpaper.
+  void ResizeCustomizedDefaultWallpaper(
+      scoped_ptr<gfx::ImageSkia> image,
+      const UserImage::RawImage& raw_image,
+      const CustomizedWallpaperRescaledFiles* rescaled_files,
+      bool* success);
+
+  // Check the result of ResizeCustomizedDefaultWallpaper and finally
+  // apply Customized Default Wallpaper.
+  void OnCustomizedDefaultWallpaperResized(
+      const GURL& wallpaper_url,
+      scoped_ptr<CustomizedWallpaperRescaledFiles> rescaled_files,
+      scoped_ptr<bool> success);
+
+  // These global default values are used to set customized default
+  // wallpaper path in InitializeWallpaper().
+  static base::FilePath GetCustomizedWallpaperDefaultRescaledFileName(
+      const char* suffix);
+
+  // If DesktopBackgroundController should start with customized default
+  // wallpaper in InitializeWallpaper().
+  static bool ShouldUseCustomizedDefaultWallpaper();
+
+  // Init "*default_*_wallpaper_file_" from given command line.
+  void SetDefaultWallpaperPathFromCommandLine(base::CommandLine* command_line);
+
   // The number of loaded wallpapers.
   int loaded_wallpapers_;
 
@@ -518,6 +594,12 @@ class WallpaperManager: public content::NotificationObserver {
   typedef std::vector<scoped_refptr<PendingWallpaper> > PendingList;
   PendingList loading_;
 
+  base::FilePath default_small_wallpaper_file_;
+  base::FilePath default_large_wallpaper_file_;
+
+  base::FilePath guest_default_small_wallpaper_file_;
+  base::FilePath guest_default_large_wallpaper_file_;
+
   DISALLOW_COPY_AND_ASSIGN(WallpaperManager);
 };