tree 30aea39afdd3f8690aa977efa1029125427c6fa8
parent c79e0d53c421a7000070a9787f3031153cff97c4
author William Hesse <whesse@google.com> 1496392804 +0200
committer William Hesse <whesse@google.com> 1496392804 +0200

Revert "Add groupBy to Stream."

This reverts commit 3e8bfb1adbf7ee156644ed0d4327f410c91a6564 and 3f90b06836fca56e72cfadbc7d61590cec79e71c.

R=lrn@google.com
BUG=

Review-Url: https://codereview.chromium.org/2921663002 .

patch from issue 2914053003 at patchset 1 (http://crrev.com/2914053003#ps1)