Use CreateDataPipe rather than mojo::DataPipe in FileSystemURLLoader.

mojo::DataPipe should not be used in production code since it provides no way
to deal with errors while creating the pipe. So switch usage of that class to
instead just call CreateDataPipe directly.

Bug: 918054
Change-Id: Idcae7fe5b587b88ea534474f0a4de7bf8113d370
Reviewed-on: https://chromium-review.googlesource.com/c/1406134
Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Marijn Kruisselbrink <mek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622066}
2 files changed