[Pretty Printing] Fix callers of removed PrettyPrintNode function

The PrettyPrintNode method is gone, and can be replaced by
PrettyPrintXml with the only difference being that the XML gets
alphabetized. That doesn't seem to affect the files in question.

Bug: 945354
Change-Id: Ia066dc72c71afcd86d00cd84ef6ca254eb049acb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1559121
Commit-Queue: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#649007}
2 files changed