Move BrowserThread to content namespace.

chrome/browser/extensions/external_extension_provider_impl.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/extensions/external_extension_provider_impl.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
@@ skipping 15 matching lines @@
 #include "ui/base/l10n/l10n_util.h"
 
 #if !defined(OS_CHROMEOS)
 #include "chrome/browser/extensions/default_apps.h"
 #endif
 
 #if defined(OS_WIN)
 #include "chrome/browser/extensions/external_registry_extension_loader_win.h"
 #endif
 
+using content::BrowserThread;
+
 // Constants for keeping track of extension preferences in a dictionary.
 const char ExternalExtensionProviderImpl::kExternalCrx[] = "external_crx";
 const char ExternalExtensionProviderImpl::kExternalVersion[] =
     "external_version";
 const char ExternalExtensionProviderImpl::kExternalUpdateUrl[] =
     "external_update_url";
 const char ExternalExtensionProviderImpl::kSupportedLocales[] =
     "supported_locales";
 
 ExternalExtensionProviderImpl::ExternalExtensionProviderImpl(
@@ skipping 310 matching lines @@
                 service,
                 new ExternalPrefExtensionLoader(
                     chrome::DIR_DEFAULT_APPS,
                     ExternalPrefExtensionLoader::NONE),
                 Extension::EXTERNAL_PREF,
                 Extension::INVALID,
                 Extension::FROM_BOOKMARK)));
   }
 #endif
 }