Add extensions code to use common updater in components/update_client/

chrome/browser/extensions/updater/chrome_update_client_config.cc

+// Copyright 2015 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/updater/chrome_update_client_config.h"
+
+#include "base/version.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/update_client/chrome_update_query_params_delegate.h"
+#include "chrome/common/channel_info.h"
+#include "components/component_updater/component_updater_url_constants.h"
+#include "components/version_info/version_info.h"
+#include "url/gurl.h"
+
+namespace extensions {
+
+ChromeUpdateClientConfig::ChromeUpdateClientConfig(
+    content::BrowserContext* context)
+    : UpdateClientConfig(context) {}
+
+std::vector<GURL> ChromeUpdateClientConfig::UpdateUrl() const {
+  std::vector<GURL> result;
+  result.push_back(GURL(component_updater::kUpdaterDefaultUrl));
+  return result;
+}
+
+std::vector<GURL> ChromeUpdateClientConfig::PingUrl() const {
+  return UpdateUrl();
+}
+
+base::Version ChromeUpdateClientConfig::GetBrowserVersion() const {
+  return base::Version(version_info::GetVersionNumber());
+}
+
+std::string ChromeUpdateClientConfig::GetChannel() const {
+  return chrome::GetChannelString();
+}
+
+std::string ChromeUpdateClientConfig::GetLang() const {
+  return ChromeUpdateQueryParamsDelegate::GetLang();
+}
+
+ChromeUpdateClientConfig::~ChromeUpdateClientConfig() {}
+
+}  // namespace extensions