Use username_hash instead of email

chrome/browser/chromeos/extensions/wallpaper_api.h

Index: chrome/browser/chromeos/extensions/wallpaper_api.h
diff --git a/chrome/browser/chromeos/extensions/wallpaper_api.h b/chrome/browser/chromeos/extensions/wallpaper_api.h
index 6767d3f31a0e14a426781915ddb8f4969a5046d6..207436f6ceef8955646a161a39da614cb633d608 100644
--- a/chrome/browser/chromeos/extensions/wallpaper_api.h
+++ b/chrome/browser/chromeos/extensions/wallpaper_api.h
@@ -51,10 +51,11 @@ class WallpaperSetWallpaperFunction : public WallpaperFunctionBase {
   std::string file_name_;
 
   // Email address of logged in user.
-  // TODO(bshe): User's email should not be used as part of wallpaper file path.
-  // http://crbug.com/287020
   std::string email_;
 
+  // Username hash of the logged in user.
+  std::string username_hash_;

[Nikita (slow), 2013/09/25 14:47:11]

nit: We try to migrate from email to user_id.
Please rename username > user_id (user_id_hash) in this CL.

I'll be removing UserManager API as well. When it was added we were not decided
on the exact name.

[bshe, 2013/09/26 16:49:57]

Done.

+
   // String representation of downloaded wallpaper.
   std::string image_data_;