Attempt four at landing the "histogram.h removed from message_loop.h" patch.

Previously committed as r52349 and r52336. Related commits: r52367, r52364
and r52343.

Rerunning trybots due to previous trybot breakage.

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/2965015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@52496 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 5097dc8cf47eb60b3284db2ccf3c1e645c6d8b7b
7 files changed
tree: f8fc7924a79fab779a4ec1477c4c9b92c4b4da8c
  1. base/
  2. build/
  3. ipc/
  4. testing/