Enable surprise me wallpaper for new profiles.

chrome/browser/ui/webui/options/create_profile_handler.cc

 // Copyright 2013 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/ui/webui/options/create_profile_handler.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/value_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/managed_mode/managed_user_registration_utility.h"
 #include "chrome/browser/managed_mode/managed_user_service.h"
 #include "chrome/browser/managed_mode/managed_user_service_factory.h"
 #include "chrome/browser/managed_mode/managed_user_sync_service.h"
 #include "chrome/browser/managed_mode/managed_user_sync_service_factory.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/profiles/profile_metrics.h"
 #include "chrome/browser/profiles/profiles_state.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
@@ skipping 139 matching lines @@
 }
 
 void CreateProfileHandler::HandleProfileCreationSuccess(
     bool create_shortcut,
     chrome::HostDesktopType desktop_type,
     const std::string& managed_user_id,
     Profile* profile) {
   switch (profile_creation_type_) {
     case NON_SUPERVISED_PROFILE_CREATION: {
       DCHECK(managed_user_id.empty());
+      // New profiles will have surprise me wallpaper enabled.
+      chromeos::WallpaperManager::Get()->EnableSurpriseMe();

[Nikita (slow), 2014/02/28 10:44:14]

CreateProfileHandler is created only when chrome://settings page is opened.

I assume you want this for all new users that never had this option set?

How do you distinguish between users that have already signed in on Chrome OS
and new users?

       CreateShortcutAndShowSuccess(create_shortcut, desktop_type, profile);
       break;
     }
     case SUPERVISED_PROFILE_CREATION:
     case SUPERVISED_PROFILE_IMPORT:
       RegisterManagedUser(create_shortcut, desktop_type,
                           managed_user_id, profile);
       break;
     case NO_CREATION_IN_PROGRESS:
       NOTREACHED();
@@ skipping 243 matching lines @@
   const ProfileInfoCache& cache =
       g_browser_process->profile_manager()->GetProfileInfoCache();
   for (size_t i = 0; i < cache.GetNumberOfProfiles(); ++i) {
     if (existing_managed_user_id == cache.GetManagedUserIdOfProfileAtIndex(i))
       return false;
   }
   return true;
 }
 
 }  // namespace options