webui: Replace usage of deprecated DataPipe

Replaces usage of DataPipe, which is deprecated, with CreateDataPipe.
There is no change in behavior, if the pipe fails to be created we will

Bug: 1012150
Change-Id: Ib077284f14c7232a0a78afcf0d1d3e1cc4f07380
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1846621
Reviewed-by: Ken Rockot <rockot@google.com>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Commit-Queue: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#704460}
1 file changed