shill: cleaning glint warnings

The typical warnings addressed include a lot of missing includes
and missing argument names. About 30 files edited in total.

Cpplint was the actual lint being run.

BUG=chromium-os:15873
TEST=Ran all the unit tests.

Change-Id: I64a8b76cd8f94c7729743b76b41a956f1b7370cf
Reviewed-on: https://gerrit.chromium.org/gerrit/12253
Commit-Ready: Hristo Stefanov <hstefanov@chromium.org>
Reviewed-by: Hristo Stefanov <hstefanov@chromium.org>
Tested-by: Hristo Stefanov <hstefanov@chromium.org>
diff --git a/glib.cc b/glib.cc
index 101ff7d..7717adc 100644
--- a/glib.cc
+++ b/glib.cc
@@ -157,8 +157,8 @@
 void GLib::KeyFileSetString(GKeyFile *key_file,
                             const gchar *group_name,
                             const gchar *key,
-                            const gchar *string) {
-  g_key_file_set_string(key_file, group_name, key, string);
+                            const gchar *value) {
+  g_key_file_set_string(key_file, group_name, key, value);
 }
 
 void GLib::KeyFileSetStringList(GKeyFile *key_file,