Implemented completion pings for component updates.

chrome/browser/component_updater/ping_sender.h

Index: chrome/browser/component_updater/ping_sender.h
diff --git a/chrome/browser/component_updater/ping_sender.h b/chrome/browser/component_updater/ping_sender.h
new file mode 100644
index 0000000000000000000000000000000000000000..b62a3e2ffca2d8660c07d82f6d1074e39349d4d7
--- /dev/null
+++ b/chrome/browser/component_updater/ping_sender.h
@@ -0,0 +1,43 @@
+// Copyright (c) 2013 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_PING_SENDER_H_
+#define CHROME_BROWSER_COMPONENT_UPDATER_PING_SENDER_H_
+
+#include <string>
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/component_updater/component_updater_service.h"
+#include "net/url_request/url_fetcher_delegate.h"
+
+struct CrxUpdateItem;
+
+namespace component_updater {
+
+// Sends a fire and forget ping. The instances of this class have no
+// ownership and they self-delete upon completion.
+class PingSender : public net::URLFetcherDelegate {
+ public:
+  explicit PingSender(ComponentUpdateService::Configurator* configurator);
+
+  void SendPing(const CrxUpdateItem* item);
+
+ private:
+  virtual ~PingSender();
+
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
+
+  std::string BuildPing(const CrxUpdateItem* item) const;
+  static std::string BuildPingEvent(const CrxUpdateItem* item);
+
+  scoped_ptr<net::URLFetcher> url_fetcher_;
+  ComponentUpdateService::Configurator* configurator_;
+
+  DISALLOW_COPY_AND_ASSIGN(PingSender);
+};
+
+}  // namespace component_updater
+
+#endif  // CHROME_BROWSER_COMPONENT_UPDATER_PING_SENDER_H_
+