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..e78eb1184ea1170a97e9a0ea57b854e7767308c0 100644
--- a/chromeos/network/network_state_handler_observer.h
+++ b/chromeos/network/network_state_handler_observer.h
@@ -55,6 +55,10 @@ class CHROMEOS_EXPORT NetworkStateHandlerObserver {
   // can safely stop observing.
   virtual void IsShuttingDown();
 
+  // Fake network path, used to indicate that NotifyNetworkPropertiesUpdated was

[Daniel Erat, 2015/03/24 20:42:25]

nit: please move this to the top of the 'public' section to match the order in
the .cc file

[Greg Levin, 2015/04/03 18:28:37]

Removed.

+  // generated by a debugging hotkey.
+  static const char kDebugDataSaverNetworkPath[];

[stevenjb, 2015/03/25 17:57:08]

This definitely doesn't belong in this file. If there is a strong reason why we
have to do this through NSH, we should create a more generic debug handler and
pass the path and Type to it.

[Greg Levin, 2015/04/03 18:28:37]

Removed.

+
  private:
   DISALLOW_COPY_AND_ASSIGN(NetworkStateHandlerObserver);
 };