Allow dbus clients to silence logging when a service is unavailable.

dbus/bus.h

Index: dbus/bus.h
diff --git a/dbus/bus.h b/dbus/bus.h
index 4af07ce1089fc2585a3c0eb6ff5dd040458e8600..4b4a7ebbdbb4ed994d84ac96a5cdb57259b6d082 100644
--- a/dbus/bus.h
+++ b/dbus/bus.h
@@ -196,6 +196,13 @@ class Bus : public base::RefCountedThreadSafe<Bus> {
   virtual ObjectProxy* GetObjectProxy(const std::string& service_name,
                                       const std::string& object_path);
 
+  // Same as above, but silence logging of
+  // org.freedesktop.DBus.Error.ServiceUnknown errors.
+  // This is useful for clients for whom the non-existence of the DBus
+  // service in question can be safely ignored.
+  virtual ObjectProxy* GetObjectProxyIgnoreUnknownService(

[satorux1, 2012/02/10 08:12:52]

Let's make this more generic, like GetObjectProxyWithOptions(
  const std::string& service_name, const std::string& object_path, int options);

See my other comments about 'options'.

[adamk, 2012/02/10 17:57:16]

Done.

+      const std::string& service_name, const std::string& object_path);
+
   // Gets the exported object for the given service name and the object
   // path. The caller must not delete the returned object.
   //