browser: Abstract message box dialog functions into its own header file.

chrome/browser/sync/sync_setup_flow.cc

 // Copyright (c) 2011 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/sync/sync_setup_flow.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
-#include "chrome/browser/platform_util.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/profile_sync_service.h"
+#include "chrome/browser/sync/sync_setup_flow_handler.h"
 #include "chrome/browser/sync/syncable/model_type.h"
-#include "chrome/browser/sync/sync_setup_flow_handler.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/net/gaia/google_service_auth_error.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "grit/generated_resources.h"
 
 namespace {
 
 // Helper function to disable password sync.
@@ skipping 416 matching lines @@
       break;
     }
     case SyncSetupWizard::DONE:
       flow_handler_->ShowSetupDone(
           UTF16ToWide(service_->GetAuthenticatedUsername()));
       break;
     default:
       NOTREACHED() << "Invalid advance state: " << state;
   }
 }