Reland "ICU API: only in SkParagraph, simplified (relanding reverted)."

This reverts commit a30095d17c879f0af0bfa799b25c97bcacd0b4fc.

Reason for revert: Fixing the build

Original change's description:
> Revert "ICU API: only in SkParagraph, simplified (relanding reverted)."
>
> This reverts commit 7479eda3b6d2884c089b62d9fc489574716ab3b7.
>
> Reason for revert: Breaking build
>
> Original change's description:
> > ICU API: only in SkParagraph, simplified (relanding reverted).
> >
> > Reverted commit: https://skia-review.googlesource.com/c/skia/+/296128/
> >
> > Change-Id: Iaf793bff94a6060579c7d6176d477e598c047be6
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/303261
> > Reviewed-by: Mike Reed <reed@google.com>
> > Commit-Queue: Julia Lavrova <jlavrova@google.com>
>
> TBR=reed@google.com,jlavrova@google.com
>
> Change-Id: Idd4c41e22aa59e24bdbd07f2fa5e9258c1bbb7a7
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/303358
> Reviewed-by: Julia Lavrova <jlavrova@google.com>
> Commit-Queue: Julia Lavrova <jlavrova@google.com>

TBR=reed@google.com,jlavrova@google.com

Change-Id: Iea5da4535ea2e388e8e632e6c556b66c8781631a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/303377
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Julia Lavrova <jlavrova@google.com>
Commit-Queue: Julia Lavrova <jlavrova@google.com>
15 files changed