The cl for turning off the flag:

https://codereview.chromium.org/2123363003/

Your change meets the bar and is auto-approved for M53 (branch: 2785)

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

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The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/86f1ba44758d861b53bfc2030fec876878e7e69d

commit 86f1ba44758d861b53bfc2030fec876878e7e69d
Author: azurewei <azurewei@chromium.org>
Date: Wed Jul 13 01:48:42 2016

Revert of Turn flag opt-in-ime-menu on by default. (patchset #2 id:20001 of https://codereview.chromium.org/2068953002/ )

Reason for revert:
This feature will not be launched in M53.

Original issue's description:
> Turn flag: opt-in-ime-menu on by default, which aims to launch on M53.
>
> BUG=570761
> TEST=Verified on local build.
>
> Committed: https://crrev.com/8a07498f562fc6bab382e01b5e711421fa30ef72
> Cr-Commit-Position: refs/heads/master@{#400374}

TBR=thestig@chromium.org
NOPRESUBMIT=true
NOTRY=true
BUG=570761,  626575 

Review-Url: https://codereview.chromium.org/2123363003
Cr-Commit-Position: refs/heads/master@{#404062}
(cherry picked from commit ef7941838399b1b0f9b7d6c2fa08337f943bb4e4)

Review-Url: https://codereview.chromium.org/2139403003
Cr-Commit-Position: refs/branch-heads/2785@{#100}
Cr-Branched-From: 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}

[modify] https://crrev.com/86f1ba44758d861b53bfc2030fec876878e7e69d/chrome/common/chrome_features.cc

All merges have been completed. 
Remove the remaining Merge-Approved labels from this issue.

 opt-in-ime-menu on by default and can see the input option on Shelf on M54