[shill] Add comments in base classes saying which properties are registered in derived classes

BUG=None
TEST=None.  Just comments changed.

Change-Id: I05b65089337fe91ceefd2cb92eb8dd8adc413bbc
Reviewed-on: http://gerrit.chromium.org/gerrit/3618
Tested-by: Chris Masone <cmasone@chromium.org>
Reviewed-by: Darin Petkov <petkov@chromium.org>
diff --git a/manager.cc b/manager.cc
index 3e8cf99..f1d8ee8 100644
--- a/manager.cc
+++ b/manager.cc
@@ -35,7 +35,6 @@
     running_(false),
     offline_mode_(false),
     state_(flimflam::kStateOffline) {
-  // Initialize Interface monitor, so we can detect new interfaces
   HelpRegisterDerivedStrings(flimflam::kAvailableTechnologiesProperty,
                              &Manager::AvailableTechnologies,
                              NULL);
@@ -67,7 +66,7 @@
                              &Manager::EnumerateWatchedServices,
                              NULL);
 
-  // TODO(cmasone): Add support for R/O properties that return DBus object paths
+  // TODO(cmasone): Wire these up once we actually put in profile support.
   // known_properties_.push_back(flimflam::kActiveProfileProperty);
   // known_properties_.push_back(flimflam::kProfilesProperty);