1 files changed, 55 insertions, 0 deletions
diff --git a/chrome/browser/component_updater/update_checker.h b/chrome/browser/component_updater/update_checker.h
new file mode 100644
index 0000000..7120b69
--- /dev/null
+++ b/chrome/browser/component_updater/update_checker.h
@@ -0,0 +1,55 @@
+// Copyright 2014 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.
+
+#ifndef CHROME_BROWSER_COMPONENT_UPDATER_UPDATE_CHECKER_H_
+#define CHROME_BROWSER_COMPONENT_UPDATER_UPDATE_CHECKER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/component_updater/update_response.h"
+
+class GURL;
+
+namespace net {
+class URLRequestContextGetter;
+}
+
+namespace component_updater {
+
+struct CrxUpdateItem;
+
+class UpdateChecker {
+ public:
+  typedef base::Callback<void (int error, const std::string& error_message,
+      const UpdateResponse::Results& results)> UpdateCheckCallback;
+
+  virtual ~UpdateChecker() {}
+
+  // Initiates an update check for the |items_to_check|. |additional_attributes|
+  // provides a way to customize the <request> element. This value is inserted
+  // as-is, therefore it must be well-formed as an XML attribute string.
+  virtual bool CheckForUpdates(
+      const std::vector<CrxUpdateItem*>& items_to_check,
+      const std::string& additional_attributes) = 0;
+
+  static scoped_ptr<UpdateChecker> Create(
+      const GURL& url,
+      net::URLRequestContextGetter* url_request_context_getter,
+      const UpdateCheckCallback& update_check_callback);
+
+ protected:
+  UpdateChecker() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(UpdateChecker);
+};
+
+}  // namespace component_updater
+
+#endif  // CHROME_BROWSER_COMPONENT_UPDATER_UPDATE_CHECKER_H_
+