GitLab

ref_counted.h is only needed for defining or instantiating
ref counted classes.

Change-Id: I9250c12fbd8362aa66861c7cde7fa5a257da3ada
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2094623
Commit-Queue: Sorin Jianu <sorin@chromium.org>
Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#748676}