Simplify threading in browser thread by making only ChromeThread deal with di...

chrome/browser/extensions/extension_disabled_infobar_delegate.cc

 // Copyright (c) 2009 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/extensions/extension_disabled_infobar_delegate.h"
 
 #include "app/l10n_util.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/extensions/crx_installer.h"
 #include "chrome/browser/extensions/extension_file_util.h"
@@ skipping 15 matching lines @@
                                   ExtensionsService* service,
                                   Extension* extension)
         : profile_(profile), service_(service), extension_(extension),
           ui_loop_(MessageLoop::current()) {
     AddRef();  // balanced in ContinueInstall or AbortInstall.
 
     // Do this now because we can't touch extension on the file loop.
     install_icon_resource_ =
         extension_->GetIconPath(Extension::EXTENSION_ICON_LARGE);
 
-    ChromeThread::GetMessageLoop(ChromeThread::FILE)->PostTask(FROM_HERE,
+    ChromeThread::PostTask(
+        ChromeThread::FILE, FROM_HERE,
         NewRunnableMethod(this, &ExtensionDisabledDialogDelegate::Start));
   }
 
   virtual ~ExtensionDisabledDialogDelegate() {
   }
 
   // ExtensionInstallUI::Delegate
   virtual void ContinueInstall() {
     service_->EnableExtension(extension_->id());
     Release();
@@ skipping 99 matching lines @@
   if (!browser)
     return;
 
   TabContents* tab_contents = browser->GetSelectedTabContents();
   if (!tab_contents)
     return;
 
   tab_contents->AddInfoBar(new ExtensionDisabledInfobarDelegate(
       tab_contents, service, extension));
 }