Oilpan: End traces when only the blink_gc category is enabled

Fixes issue where Oilpan traces would not be closed when only the blink_gc category is enabled. (regressed in r558522)

Bug: 840789
Change-Id: Ie6e005e88b05db592f47655966ddff3fd8bf65c8
Reviewed-on: https://chromium-review.googlesource.com/1065723
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Keishi Hattori <keishi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#560237}
1 file changed