Revert 157524 - Pass through small buffer sizes without FIFO on Linux.

TBR=dalecurtis@chromium.org
BUG=150570
TEST=content_unittests, manual tests: WebRTC on linux works fine.

Review URL: https://codereview.chromium.org/10910306

TBR=xians@chromium.org
Review URL: https://codereview.chromium.org/10952022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@157532 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed