commit edf0f13e96321b2551d06832d59704d554aac4ba
author yhirano <yhirano@chromium.org> Wed Jun 01 03:51:42 2016
committer Commit bot <commit-bot@chromium.org> Wed Jun 01 03:53:01 2016
tree d0ec4caa1810c31df8b04675d62f542e24cd09ac
parent 04b26cac6e20af2aff50b8a064691c605d79ae13

Move FontResourceClient to Oilpan heap

This change makes FontResourceClient a GarbageCollectedMixin
subclass.

Registering a prefinalizer in a class T is not possible when
 - T has multiple GarbageCollectedMixin base classes, and
 - T doesn't have USING_GARBAGE_COLLECTED_MIXIN statement.

Hence this CL modifies ResourceOwner<R, C> definition so that it
inherits GarbageCollectedMixin only when C is not derived from
GarbageCollectedMixin.

BUG=587663

Review-Url: https://codereview.chromium.org/2014533002
Cr-Commit-Position: refs/heads/master@{#397045}