Obtain WiFi SSID on Android using Android APIs

net/base/network_change_notifier.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 NET_BASE_NETWORK_CHANGE_NOTIFIER_H_
 #define NET_BASE_NETWORK_CHANGE_NOTIFIER_H_
 
 #include <stdint.h>
 
 #include <memory>
+#include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/observer_list_threadsafe.h"
 #include "base/time/time.h"
 #include "net/base/net_export.h"
 
 class GURL;
 
 namespace net {
@@ skipping 247 matching lines @@
   // user won't be able to connect to remote sites. However, another return
   // value doesn't imply that the user will be able to connect to remote sites;
   // even if some link is up, it is uncertain whether a particular connection
   // attempt to a particular remote site will be successful.
   // The returned value only describes the connection currently used by the
   // device, and does not take into account other machines on the network. For
   // example, if the device is connected using Wifi to a 3G gateway to access
   // the internet, the connection type is CONNECTION_WIFI.
   static ConnectionType GetConnectionType();
 
+  // Returns the SSID of the current connection. If the current connection type
+  // is not CONNECTION_WIFI, or if the SSID is unavailable, it may return an

[Not at Google. Contact bengr, 2016/06/23 20:08:56]

"may" -> "will"?

[tbansal1, 2016/06/27 19:48:20]

Done.

+  // empty string. Currently, only implemented on Android.
+  static std::string GetWiFiSSID();
+
   // Sets |max_bandwidth_mbps| to a theoretical upper limit on download
   // bandwidth, potentially based on underlying connection type, signal
   // strength, or some other signal. If the network subtype is unknown then
   // |max_bandwidth_mbps| is set to +Infinity and if there is no network
   // connection then it is set to 0.0. The circumstances in which a more
   // specific value is given are: when an Android device is connected to a
   // cellular or WiFi network, and when a ChromeOS device is connected to a
   // cellular network. See the NetInfo spec for the mapping of
   // specific subtypes to bandwidth values: http://w3c.github.io/netinfo/.
   // |connection_type| is set to the current active default network's connection
@@ skipping 205 matching lines @@
 #endif
 
   // These are the actual implementations of the static queryable APIs.
   // See the description of the corresponding functions named without "Current".
   // Implementations must be thread-safe. Implementations must also be
   // cheap as they are called often.
   virtual ConnectionType GetCurrentConnectionType() const = 0;
   virtual void GetCurrentMaxBandwidthAndConnectionType(
       double* max_bandwidth_mbps,
       ConnectionType* connection_type) const;
+  virtual std::string GetCurrentWiFiSSID() const;
   virtual bool AreNetworkHandlesCurrentlySupported() const;
   virtual void GetCurrentConnectedNetworks(NetworkList* network_list) const;
   virtual ConnectionType GetCurrentNetworkConnectionType(
       NetworkHandle network) const;
   virtual NetworkHandle GetCurrentDefaultNetwork() const;
 
   // Hook that allows derived implementations to log histograms at the time a
   // new histogram record is being finalized.
   virtual void OnFinalizingMetricsLogRecord() {}
 
@@ skipping 59 matching lines @@
 
   // Set true to disable non-test notifications (to prevent flakes in tests).
   static bool test_notifications_only_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifier);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_NETWORK_CHANGE_NOTIFIER_H_