This looks like it was causing the pipe to sometimes overfill.

BUG=38220
TEST=See bug

Review URL: http://codereview.chromium.org/1003004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@41873 0039d316-1c4b-4281-b951-d872f2087c98
8 files changed