Revert 74292 - Splits ChromeURLDataManager into 2 chunks:...

chrome/browser/dom_ui/downloads_ui.cc

 // Copyright (c) 2010 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/dom_ui/downloads_ui.h"
 
 #include "base/singleton.h"
 #include "base/string_piece.h"
 #include "base/threading/thread.h"
 #include "base/values.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/dom_ui/chrome_url_data_manager.h"
 #include "chrome/browser/dom_ui/downloads_dom_handler.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/url_constants.h"
 #include "grit/browser_resources.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace {
 
@@ skipping 100 matching lines @@
   DownloadManager* dlm = GetProfile()->GetDownloadManager();
 
   DownloadsDOMHandler* handler = new DownloadsDOMHandler(dlm);
   AddMessageHandler(handler);
   handler->Attach(this);
   handler->Init();
 
   DownloadsUIHTMLSource* html_source = new DownloadsUIHTMLSource();
 
   // Set up the chrome://downloads/ source.
-  contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      NewRunnableMethod(ChromeURLDataManager::GetInstance(),
+                        &ChromeURLDataManager::AddDataSource,
+                        make_scoped_refptr(html_source)));
 }
 
 // static
 RefCountedMemory* DownloadsUI::GetFaviconResourceBytes() {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytes(IDR_DOWNLOADS_FAVICON);
 }