Sync: Refactor the ProfileSyncService and sync setup flow to remove use of WebUI from PSS.

chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.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/ui/webui/ntp/new_tab_page_sync_handler.h"
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/string_split.h"
@@ skipping 138 matching lines @@
   SendSyncMessageToPage(FromSyncStatusMessageType(type),
                         UTF16ToUTF8(status_msg), UTF16ToUTF8(link_text));
 }
 
 void NewTabPageSyncHandler::HandleSyncLinkClicked(const ListValue* args) {
   DCHECK(!waiting_for_initial_page_load_);
   DCHECK(sync_service_);
   if (!sync_service_->IsSyncEnabled())
     return;
   if (sync_service_->HasSyncSetupCompleted()) {
-    sync_service_->ShowErrorUI(NULL);
+    sync_service_->ShowErrorUI();
     DictionaryValue value;
     value.SetString("syncEnabledMessage",
                     l10n_util::GetStringFUTF16(IDS_SYNC_NTP_SYNCED_TO,
                         sync_service_->GetAuthenticatedUsername()));
     web_ui_->CallJavascriptFunction("syncAlreadyEnabled", value);
   } else {
     // User clicked the 'Start now' link to begin syncing.
     ProfileSyncService::SyncEvent(ProfileSyncService::START_FROM_NTP);
-    sync_service_->ShowLoginDialog(NULL);
+    sync_service_->ShowLoginDialog();
   }
 }
 
 void NewTabPageSyncHandler::OnStateChanged() {
   // Don't do anything if the page has not yet loaded.
   if (waiting_for_initial_page_load_)
     return;
   BuildAndSendSyncStatus();
 }
 
@@ skipping 32 matching lines @@
       if (linkurl.empty()) {
         value.SetBoolean("linkurlisset", false);
       } else {
         value.SetBoolean("linkurlisset", true);
         value.SetString("linkurl", linkurl);
       }
     }
   }
   web_ui_->CallJavascriptFunction("syncMessageChanged", value);
 }