Clean up snapshot command log.

Review URL: https://codereview.chromium.org/320423004

Review URL: https://codereview.chromium.org/320423004

git-svn-id: svn://svn.chromium.org/blink/trunk@176428 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Oilpan: Ensure that types definitions are known for traced weak members.

R=sigbjornf@opera.com
BUG=

Review URL: https://codereview.chromium.org/334623006

git-svn-id: svn://svn.chromium.org/blink/trunk@176429 bbb929c8-8fbe-4397-9dbb-9b2b20218538