GitLab

Add the IME decoder flag in the chrome://flags, so that QA/Dev can turn
on/off the feature to verify native deocers.

Bug: 837156
Change-Id: I6ace99acf2127958ec4f0868962c721c035fd06d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1866370
Commit-Queue: Leo Zhang <googleo@chromium.org>
Reviewed-by: David Vallet <dvallet@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708155}