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This is cherry-picking the change made on https://crrev.com/c/1449441, expect
for enabling ResourceLoadViaDataPipe.

TBR=yhirano@chromium.org, kinuko@chromium.org

Bug: 894819, 927184, 926849
Change-Id: I229d09a68bd08722b42046c15e5a5243695eff94
Reviewed-on: https://chromium-review.googlesource.com/c/1454345Reviewed-by: Makoto Shimazu <shimazu@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Makoto Shimazu <shimazu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#629073}