Update the title placeholder for Simplified view

"Reader Mode" is the internal name, and "Simplified view" is more
consistent with other user-visible strings.

Bug: 811417
Change-Id: I6b96d572b7c30ab15ab93b951d59f4ca7b06f1c9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1583339
Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Reviewed-by: Theresa <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#653912}
2 files changed