Helper functions in NetworkChangeNotifier related to WWAN use

net/base/network_change_notifier.h

Index: net/base/network_change_notifier.h
diff --git a/net/base/network_change_notifier.h b/net/base/network_change_notifier.h
index 731c305bebbf6279a0dd4e10d41488a3dbe4d3d4..58a30e3ca0ab25c7b7fbd5bf34a6d761923be6a4 100644
--- a/net/base/network_change_notifier.h
+++ b/net/base/network_change_notifier.h
@@ -130,9 +130,13 @@ class NET_EXPORT NetworkChangeNotifier {
   // |false| is inconclusive; even if some link is up, it is uncertain
   // whether a particular connection attempt to a particular remote site
   // will be successfully.
-  static bool IsOffline() {
-    return GetConnectionType() == CONNECTION_NONE;
-  }
+  static bool IsOffline();
+
+  // Returns true if the current connection type uses WWAN.

[pauljensen, 2012/10/12 14:01:15]

I'd prefer "Celluar" to "WWAN" as its more common terminology (262M versus 6M
Google.com hits).

+  static bool IsOverWWAN();

[pauljensen, 2012/10/12 14:01:15]

Slight preference to "IsOn" or "IsUsing" over "IsOver" just because "On" and
"Using" IMHO imply online to a greater degree than "Over".  Communication on my
cell phone could be over cellular but that doesn't mean its actively using the
connection.

+
+  // Returns true if |type| uses WWAN.
+  static bool IsOverWWAN(ConnectionType type);
 
   // Like Create(), but for use in tests.  The mock object doesn't monitor any
   // events, it merely rebroadcasts notifications when requested.