Moving allocator clean-up to a listener.

Moving the clean-up of ChildConnectionAllocator from freeConnection
to a specific listener, in preparation of moving clean-up of
connections from ChildProcessLauncher to the allocator itself.

Bug: 702316
Change-Id: I90755e475a94b34840868d3e788d7e7c1cfe2f79
Reviewed-on: https://chromium-review.googlesource.com/544085
Reviewed-by: Bo Liu <boliu@chromium.org>
Commit-Queue: Jay Civelli <jcivelli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#481975}
1 file changed