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

chrome/browser/dom_ui/print_preview_ui.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/dom_ui/print_preview_ui.h"
 
 #include "base/values.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/dom_ui/print_preview_handler.h"
 #include "chrome/browser/dom_ui/print_preview_ui_html_source.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/tab_contents/tab_contents.h"
 
 PrintPreviewUI::PrintPreviewUI(TabContents* contents)
     : DOMUI(contents),
       html_source_(new PrintPreviewUIHTMLSource()) {
   // PrintPreviewUI owns |handler|.
   PrintPreviewHandler* handler = new PrintPreviewHandler();
   AddMessageHandler(handler->Attach(this));
 
   // Set up the chrome://print/ source.
-  contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source_);
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      NewRunnableMethod(
+          ChromeURLDataManager::GetInstance(),
+          &ChromeURLDataManager::AddDataSource,
+          html_source_));
 }
 
 PrintPreviewUI::~PrintPreviewUI() {
 }
 
 PrintPreviewUIHTMLSource* PrintPreviewUI::html_source() {
   return html_source_.get();
 }
 
 void PrintPreviewUI::PreviewDataIsAvailable() {
   StringValue dummy_url("chrome://print/print.pdf");
   CallJavascriptFunction(L"createPDFPlugin", dummy_url);
 }