Moving new First Run to use per-profile value, rather than simply checking IsChromeFirstRun.

chrome/browser/profiles/profile_manager.cc

 // 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.
 
 #include "chrome/browser/profiles/profile_manager.h"
 
 #include <stdint.h>
 
 #include <map>
 #include <set>
@@ skipping 909 matching lines @@
       command_line->HasSwitch(switches::kSupervisedUserId);
   if (force_supervised_user_id) {
     supervised_user_id =
         command_line->GetSwitchValueASCII(switches::kSupervisedUserId);
   }
   if (force_supervised_user_id ||
       !profile->GetPrefs()->HasPrefPath(prefs::kSupervisedUserId)) {
     profile->GetPrefs()->SetString(prefs::kSupervisedUserId,
                                    supervised_user_id);
   }
+#if !defined(OS_ANDROID)
+  if (profile->IsNewProfile()) {

[Peter Kasting, 2016/11/20 07:32:09]

Nit: No {}

[tmartino, 2016/11/21 00:27:34]

Done

+    profile->GetPrefs()->SetBoolean(prefs::kHasSeenWelcomeUI, false);
+  }
+#endif
 }
 
 void ProfileManager::RegisterTestingProfile(Profile* profile,
                                             bool add_to_storage,
                                             bool start_deferred_task_runners) {
   RegisterProfile(profile, true);
   if (add_to_storage) {
     InitProfileUserPrefs(profile);
     AddProfileToStorage(profile);
   }
@@ skipping 729 matching lines @@
 
   FinishDeletingProfile(profile_to_delete_path, new_active_profile_path);
   if (!original_callback.is_null())
     original_callback.Run(loaded_profile, status);
 }
 #endif  // !defined(OS_ANDROID)
 
 ProfileManagerWithoutInit::ProfileManagerWithoutInit(
     const base::FilePath& user_data_dir) : ProfileManager(user_data_dir) {
 }