
Add an enumeration for the various live priority values.

R=dmazzoni,pupius
DELTA=26  (26 added, 0 deleted, 0 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=2211


git-svn-id: 35241bd708fe29f1f6c7a4322d322e99ff93b95e@1009 0b95b8e8-c90f-11de-9d4f-f947ee5921c8

mdavid/closure-library,mdavid/closure-library,mdavid/closure-library