Oilpan: avoid data race on gcInfo index initialization.

A race on a non-updated GCInfo index ought to be benign, given the
double-check locking done, but preferable to be tidy.

R=haraken
BUG=448355

Review URL: https://codereview.chromium.org/851723002

git-svn-id: svn://svn.chromium.org/blink/trunk@188305 bbb929c8-8fbe-4397-9dbb-9b2b20218538
2 files changed
tree: 936775cacc481df70513dd8d9540007c4a7b4c92
  1. third_party/