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..16895aed8677d7689bec5d50efddbc5b8ef2abf9 100644
--- a/chrome/browser/chromeos/login/wallpaper_manager.h
+++ b/chrome/browser/chromeos/login/wallpaper_manager.h
@@ -72,6 +72,9 @@ extern const char kThumbnailWallpaperSubDir[];
 // OS device.
 class WallpaperManager: public content::NotificationObserver {
  public:
+  class CustomizedWallpaperRescaledFiles;
+  class CustomizedWallpaperFilesExist;
+
   // For testing.
   class TestApi {
    public:
@@ -229,7 +232,8 @@ 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,
@@ -305,6 +309,23 @@ 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
+  // (must be writable)
+  void SetCustomizedDefaultWallpaper(const GURL& wallpaper_url,
+                                     const base::FilePath& downloaded_file,
+                                     const base::FilePath& resized_directory);
+
+  // These global default values are used to init customized default
+  // wallpaper in Desktop Background Controller before first wallpaper was
+  // shown.
+  static base::FilePath GetCustomizedWallpaperDefaultRescaledSmallFileName();
+  static base::FilePath GetCustomizedWallpaperDefaultRescaledLargeFileName();
+
+  // If DesktopBackgroundController should start with customized default
+  // wallpaper.
+  static bool ShouldUseCustomizedDefaultWallpaper();
+
  private:
   friend class TestApi;
   friend class WallpaperManagerBrowserTest;
@@ -425,7 +446,9 @@ 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 +485,33 @@ 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);
+
   // The number of loaded wallpapers.
   int loaded_wallpapers_;