Add SSID getter to WiFiService

components/wifi/wifi_service.h

Index: components/wifi/wifi_service.h
diff --git a/components/wifi/wifi_service.h b/components/wifi/wifi_service.h
index 2fec66e82b60b8b85b0df38c226e2655fc87707b..ebb743914bd6e93a23f00c1059507060de46f832 100644
--- a/components/wifi/wifi_service.h
+++ b/components/wifi/wifi_service.h
@@ -118,6 +118,10 @@ class WIFI_EXPORT WiFiService {
   // event on completion.
   virtual void RequestConnectedNetworkUpdate() = 0;
 
+  // Get the SSID of the currently connected network, if any.
+  virtual void GetConnectedNetworkSSID(std::string* ssid,
+                                       std::string* error) = 0;
+
  protected:
   WiFiService() {}