Move Extension into extensions namespace

chrome/browser/sync/test/integration/sync_extension_helper.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/sync/test/integration/sync_extension_helper.h"
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/pending_extension_info.h"
 #include "chrome/browser/extensions/pending_extension_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/string_ordinal.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 #include "chrome/browser/sync/test/integration/sync_datatype_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using extensions::Extension;
+
 SyncExtensionHelper::ExtensionState::ExtensionState()
     : enabled_state(ENABLED), incognito_enabled(false) {}
 
 SyncExtensionHelper::ExtensionState::~ExtensionState() {}
 
 bool SyncExtensionHelper::ExtensionState::Equals(
     const SyncExtensionHelper::ExtensionState &other) const {
   return ((enabled_state == other.enabled_state) &&
           (incognito_enabled == other.incognito_enabled));
 }
@@ skipping 312 matching lines @@
   if (extension->id() != expected_id) {
     EXPECT_EQ(expected_id, extension->id());
     return NULL;
   }
   DVLOG(2) << "created extension with name = "
            << name << ", id = " << expected_id;
   (it->second)[name] = extension;
   id_to_name_[expected_id] = name;
   return extension;
 }