Refactoring the SysInfoProvider.

chrome/browser/chromeos/system_logs/debug_daemon_log_source.h

+// 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_SYSTEM_LOGS_DEBUG_DAEMON_LOG_SOURCE_H_
+#define CHROME_BROWSER_CHROMEOS_SYSTEM_LOGS_DEBUG_DAEMON_LOG_SOURCE_H_
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/chromeos/system_logs/system_logs_fetcher.h"
+
+namespace chromeos {
+
+// Gathers log data from Debug Daemon.
+class DebugDaemonLogSource : public SystemLogsSource {
+ public:
+  DebugDaemonLogSource();
+  virtual ~DebugDaemonLogSource();
+
+  // Fetches logs from the daemon over dbus. After the fetch is complete, the
+  // results will be forwarded to the request supplied to the constructor and
+  // this instance will free itself.
+  // SystemLogsSource override.
+  virtual void Fetch(const SysLogsSourceCallback& callback) OVERRIDE;
+
+ private:
+  // Callbacks for the 4 different dbus calls
+  void OnGetRoutes(bool succeeded, const std::vector<std::string>& routes);
+  void OnGetNetworkStatus(bool succeeded, const std::string& status);
+  void OnGetModemStatus(bool succeeded, const std::string& status);
+  void OnGetLogs(bool succeeded,
+                 const std::map<std::string, std::string>& logs);
+  // Sends the data to the callback_ when all the requests are completed
+  void RequestCompleted();
+
+  scoped_ptr<SystemLogsResponse> response_;
+  SysLogsSourceCallback callback_;
+  int num_pending_requests_;
+  base::WeakPtrFactory<DebugDaemonLogSource> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(DebugDaemonLogSource);
+};
+
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_LOGS_DEBUG_DAEMON_LOG_SOURCE_H_