The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f4ac7d77d34333b0873a799dc17097818b82d589

commit f4ac7d77d34333b0873a799dc17097818b82d589
Author: noyau <noyau@chromium.org>
Date: Tue Mar 07 19:40:39 2017

Remove Popular Sites experiment on iOS.

Switch all population to Popular sites.

BUG= 698857 

Review-Url: https://codereview.chromium.org/2737573003
Cr-Commit-Position: refs/heads/master@{#455176}

[modify] https://crrev.com/f4ac7d77d34333b0873a799dc17097818b82d589/components/ntp_tiles/field_trial.cc
[modify] https://crrev.com/f4ac7d77d34333b0873a799dc17097818b82d589/components/ntp_tiles/field_trial.h
[modify] https://crrev.com/f4ac7d77d34333b0873a799dc17097818b82d589/ios/chrome/browser/ios_chrome_field_trials.cc

Your change meets the bar and is auto-approved for M58. Please go ahead and merge the CL to branch 3029 manually. Please contact milestone owner if you have questions.
Owners: amineer@(clank), cmasso@(bling), bhthompson@(cros), govind@(desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/30e9e0e564bbfb04e7096e7dd4b701f22d20785c

commit 30e9e0e564bbfb04e7096e7dd4b701f22d20785c
Author: Eric Noyau <noyau@google.com>
Date: Tue Mar 14 20:07:13 2017

Remove Popular Sites experiment on iOS.

Switch all population to Popular sites.

BUG= 698857 

Review-Url: https://codereview.chromium.org/2737573003
Cr-Commit-Position: refs/heads/master@{#455176}
(cherry picked from commit f4ac7d77d34333b0873a799dc17097818b82d589)

Review-Url: https://codereview.chromium.org/2754523002 .
Cr-Commit-Position: refs/branch-heads/3029@{#193}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}

[modify] https://crrev.com/30e9e0e564bbfb04e7096e7dd4b701f22d20785c/components/ntp_tiles/field_trial.cc
[modify] https://crrev.com/30e9e0e564bbfb04e7096e7dd4b701f22d20785c/components/ntp_tiles/field_trial.h
[modify] https://crrev.com/30e9e0e564bbfb04e7096e7dd4b701f22d20785c/ios/chrome/browser/ios_chrome_field_trials.cc

Tested in the M58.0.3029.83 dev, the popular sites are displaying by default on launch.