Move PendingExtensionManager and PendingExtensionInfo into extensions namespace

chrome/browser/extensions/pending_extension_manager.cc

 // Copyright (c) 2012 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/pending_extension_manager.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/version.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/pending_extension_info.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/public/browser/browser_thread.h"
 
 #include <algorithm>
 
 using content::BrowserThread;
-using extensions::Extension;
 
 namespace {
 
 // Install predicate used by AddFromExternalUpdateUrl().
-bool AlwaysInstall(const Extension& extension) {
+bool AlwaysInstall(const extensions::Extension& extension) {
   return true;
 }
 
 }  // namespace
 
+namespace extensions {
+
 PendingExtensionManager::PendingExtensionManager(
     const ExtensionServiceInterface& service)
     : service_(service) {
 }
 
 PendingExtensionManager::~PendingExtensionManager() {}
 
 const PendingExtensionInfo* PendingExtensionManager::GetById(
     const std::string& id) const {
   PendingExtensionList::const_iterator iter;
@@ skipping 196 matching lines @@
                              install_source));
   }
 
   return true;
 }
 
 void PendingExtensionManager::AddForTesting(
     const PendingExtensionInfo& pending_extension_info) {
   pending_extension_list_.push_back(pending_extension_info);
 }
+
+}  // namespace extensions