[SH iOS] Cleanup for "Adding text fragment parsing"

This CL addresses a few comments that were received after landing
https://chromium-review.googlesource.com/c/chromium/src/+/2337407

Bug: 1099268
Change-Id: Ieb8fa406f69fc28ab15ce89d79030d93b39cc8ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2341665
Commit-Queue: Tommy Martino <tmartino@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#796172}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 3f80a26c4e151f5ae16748ba551896268f8c0a3f
2 files changed