Initial CL for Data Saver (Flywheel) prompt when cellular network detected

chromeos/network/network_state_handler_observer.h

Index: chromeos/network/network_state_handler_observer.h
diff --git a/chromeos/network/network_state_handler_observer.h b/chromeos/network/network_state_handler_observer.h
index f2ffd619adf5497ec9b15b470629e0527668085b..7fa867afa99f4b336f96ad9f3d4630b39ced6ed6 100644
--- a/chromeos/network/network_state_handler_observer.h
+++ b/chromeos/network/network_state_handler_observer.h
@@ -16,6 +16,8 @@ namespace chromeos {
 class DeviceState;
 class NetworkState;
 
+const char kHotkeyDebugDataSaver[] = "hotkey-debug-datasaver";

[Daniel Erat, 2015/03/23 03:49:21]

please don't put constants in the toplevel chromeos namespace unless they need
to be there. this would be better as a public static member of whichever class
it's most closely related to.

[Greg Levin, 2015/03/24 20:35:32]

Done.

+
 // Observer class for all network state changes, including changes to
 // active (connecting or connected) services.
 class CHROMEOS_EXPORT NetworkStateHandlerObserver {