Add usage display support for Extension IME.

chromeos/dbus/ibus/ibus_lookup_table.cc

Index: chromeos/dbus/ibus/ibus_lookup_table.cc
diff --git a/chromeos/dbus/ibus/ibus_lookup_table.cc b/chromeos/dbus/ibus/ibus_lookup_table.cc
index a4fb1f00d5a5acab066cf478bc8ea57fcd083f31..eba15108d3ff6caec558aac014f3e738126b5796 100644
--- a/chromeos/dbus/ibus/ibus_lookup_table.cc
+++ b/chromeos/dbus/ibus/ibus_lookup_table.cc
@@ -46,6 +46,8 @@ void AppendIBusLookupTable(const IBusLookupTable& table,
     ibus::IBusText text;
     text.set_text(candidates[i].value);
     text.set_annotation(candidates[i].annotation);
+    text.set_description_title(candidates[i].description_title);
+    text.set_description_body(candidates[i].description_body);
     AppendIBusText(text, &text_writer);
     if (!candidates[i].label.empty())
       have_labels = true;