Add wifi AP info to system profile metrics

chromeos/network/wifi_access_point_info_provider_chromeos.h

Index: chromeos/network/wifi_access_point_info_provider_chromeos.h
diff --git a/chromeos/network/wifi_access_point_info_provider_chromeos.h b/chromeos/network/wifi_access_point_info_provider_chromeos.h
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+++ b/chromeos/network/wifi_access_point_info_provider_chromeos.h
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+// 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 CHROMEOS_NETWORK_WIFI_ACCESS_POINT_INFO_PROVIDER_CHROMEOS_H_
+#define CHROMEOS_NETWORK_WIFI_ACCESS_POINT_INFO_PROVIDER_CHROMEOS_H_
+
+#include "base/basictypes.h"
+#include "base/values.h"
+#include "chromeos/chromeos_export.h"
+#include "chromeos/network/network_state_handler_observer.h"
+#include "net/base/wifi_access_point_info_provider.h"
+
+namespace chromeos {
+
+// WifiAccessPointInfoProviderChromeos provides the connected wifi
+// acccess point information for chromeos.
+class CHROMEOS_EXPORT WifiAccessPointInfoProviderChromeos
+    : public net::WifiAccessPointInfoProvider,
+      public chromeos::NetworkStateHandlerObserver,
+      public base::SupportsWeakPtr<WifiAccessPointInfoProviderChromeos> {
+ public:
+  WifiAccessPointInfoProviderChromeos();
+  virtual ~WifiAccessPointInfoProviderChromeos();
+
+  // WifiAccessPointInfoProvider
+  virtual bool GetInfo(net::WifiAccessPointInfo* info) OVERRIDE;
+
+  // NetworkStateHandlerObserver overrides.
+  virtual void DefaultNetworkChanged(
+      const chromeos::NetworkState* default_network) OVERRIDE;
+
+ private:
+  // Callback from Shill.Service.GetProperties. Parses |properties| to obtain
+  // the wifi access point information.
+  void ParseInfo(const std::string& service_path,
+                 const base::DictionaryValue& properties);
+
+  net::WifiAccessPointInfo wifi_access_point_info_;
+
+  DISALLOW_COPY_AND_ASSIGN(WifiAccessPointInfoProviderChromeos);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_NETWORK_WIFI_ACCESS_POINT_INFO_PROVIDER_CHROMEOS_H_