[CrOS Tether] Create the ActiveHost class, which stores metadata related to the current connection …

chromeos/components/tether/pref_names.h

Index: chromeos/components/tether/pref_names.h
diff --git a/chromeos/components/tether/pref_names.h b/chromeos/components/tether/pref_names.h
index 7f5b92370efecd021be33fbbb51feec4a6d00912..d94732c250b5e7e255d5c889ffedd4e94e4383e0 100644
--- a/chromeos/components/tether/pref_names.h
+++ b/chromeos/components/tether/pref_names.h
@@ -22,6 +22,18 @@ extern const char kMostRecentTetherAvailablilityResponderIds[];
 // a response code indicating that its hotspot has started up successfully.
 extern const char kMostRecentConnectTetheringResponderId[];
 
+// The status of the active host. The value stored for this key is the integer
+// version of an ActiveHost::ActiveHostStatus enumeration value.
+extern const char kActiveHostStatus[];
+
+// The device ID of the active host. If there is no active host, the value at

[Ryan Hansberry, 2017/03/09 19:18:20]

value of

[Kyle Horimoto, 2017/03/09 19:29:28]

I think you're misreading this. The value of this key is a constant and can
never be "". The value in prefs at this key is the thing that can be "".

[Ryan Hansberry, 2017/03/09 19:48:20]

Oops :)

+// this key is "".
+extern const char kActiveHostDeviceId[];
+
+// The network ID of the active host. If there is no active host, the value at

[Ryan Hansberry, 2017/03/09 19:18:20]

value of

[Kyle Horimoto, 2017/03/09 19:29:28]

Same.

+// this key is "".
+extern const char kTetherNetworkId[];

[Ryan Hansberry, 2017/03/09 19:18:20]

In the network stack, there will simultaneously be the tether network (the
visible network in the UI) and the wifi network (the real network that is
hidden). Because this network_id is referring to the wifi network, please
instead name it kWifiNetworkId. Please also apply this to the rest of the CL.

[Kyle Horimoto, 2017/03/09 19:29:28]

Done.

+
 }  // namespace prefs
 
 }  // namespace tether