GitLab

(platform_channel_posix.cc gets moved to platform_channel_pair_posix.cc
entirely.)

R=darin@chromium.org

Review URL: https://codereview.chromium.org/133533007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244234 0039d316-1c4b-4281-b951-d872f2087c98