buildbucket: INVALID_BUILD_DEFINITION
buildbucket: INVALID_BUILD_DEFINITION

INVALID_BUILD_DEFINITIONS is a failure reason that means that a build
system rejected a build because its definition is wrong. For instance, a
parameter is missing, or it is malformed

R=sheyang@chromium.org, vadimsh@chromium.org
BUG=450413

Review URL: https://codereview.chromium.org/875283002

nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra