tree cffe103887b892af3ca4127a1f1d3359d66cc9f6
parent 6638e8b4f21ba6cb51d9110e2f63d481a8304180
author Dale Sather <dalesat@chromium.org> 1464110531 -0700
committer Dale Sather <dalesat@chromium.org> 1464110531 -0700

Motown: Factor FactoryServiceBase out of MediaFactoryService
Extracts FactoryServiceBase from MediaFactoryService so it can be used
for other services (the new logging service will use it).
FactoryServiceBase defines the relationship between a factory service
and its 'products' and provides a means for controlling the lifetime of
products.

R=kulakowski@chromium.org

Review URL: https://codereview.chromium.org/2007593004 .