Remove BrowserThread::UnsafeGetBrowserThread, add UnsafeGetMessageLoopForThread.

chrome/browser/net/chrome_url_request_context.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/net/chrome_url_request_context.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
@@ skipping 100 matching lines @@
 
 }  // namespace
 
 // ----------------------------------------------------------------------------
 // ChromeURLRequestContextGetter
 // ----------------------------------------------------------------------------
 
 ChromeURLRequestContextGetter::ChromeURLRequestContextGetter(
     Profile* profile,
     ChromeURLRequestContextFactory* factory)
-    : io_thread_(g_browser_process->io_thread()),
-      factory_(factory) {
+    : factory_(factory) {
   DCHECK(factory);
   DCHECK(profile);
   RegisterPrefsObserver(profile);
 }
 
 ChromeURLRequestContextGetter::~ChromeURLRequestContextGetter() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   DCHECK(registrar_.IsEmpty()) << "Probably didn't call CleanupOnUIThread";
 }
@@ skipping 255 matching lines @@
       net::HttpUtil::GenerateAcceptLanguageHeader(accept_language));
 }
 
 void ChromeURLRequestContext::OnDefaultCharsetChange(
     const std::string& default_charset) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   set_referrer_charset(default_charset);
   set_accept_charset(
       net::HttpUtil::GenerateAcceptCharsetHeader(default_charset));
 }