Add wifi AP info to system profile metrics

components/metrics/proto/system_profile.proto

 // 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.
 //
 // Stores information about the user's brower and system configuration.
 // The system configuration fields are recorded once per client session.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
@@ skipping 269 matching lines @@
       WIFI_PHY_LAYER_PROTOCOL_NONE = 0;
       WIFI_PHY_LAYER_PROTOCOL_ANCIENT = 1;
       WIFI_PHY_LAYER_PROTOCOL_A = 2;
       WIFI_PHY_LAYER_PROTOCOL_B = 3;
       WIFI_PHY_LAYER_PROTOCOL_G = 4;
       WIFI_PHY_LAYER_PROTOCOL_N = 5;
       WIFI_PHY_LAYER_PROTOCOL_UNKNOWN = 6;
     }
     // The physical layer mode of the associated wifi access point, if any.
     optional WifiPHYLayerProtocol wifi_phy_layer_protocol = 4;
+
+    // Describe wifi AP information.
+    message WifiAp {
+      // Vendor prefix of the AP's BSSID, these are OUI registered by
+      // the IEEE and are encoded with the first byte in bits 16-23, the
+      // second byte in bits 8-15 and the third byte in bits 0-7.
+      optional uint32 vendor_prefix = 1;
+      // Seurity mode.
+      optional string security_mode = 2;
+      // Vendor specific information.
+      message VendorInformation {
+        optional string model_number = 1;
+        optional string model_name = 2;
+        optional string device_name = 3;
+        optional string manufacturer = 4;
+        repeated uint32 oui = 5;
+      }
+      optional VendorInformation vendor_info = 3;
+    }
+    // Information of the wireless AP that device is connected to.
+    optional WifiAp ap_info = 5;
   }
   optional Network network = 13;
 
   // Information on the Google Update install that is managing this client.
   message GoogleUpdate {
     // Whether the Google Update install is system-level or user-level.
     optional bool is_system_install = 1;
 
     // The date at which Google Update last started performing an automatic
     // update check, in seconds since the Unix epoch.
@@ skipping 200 matching lines @@
   // client_id:
   //   client_key = client_id % 4096
   // Then, each installed extension is mapped into a hash bucket according to
   //   bucket = CityHash64(StringPrintf("%d:%s",
   //                                    client_key, extension_id)) % 1024
   // The client reports the set of hash buckets occupied by all installed
   // extensions.  If multiple extensions map to the same bucket, that bucket is
   // still only reported once.
   repeated int32 occupied_extension_bucket = 18;
 }