The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ef9c803b58398f3b2f531103e024035210fb367d

commit ef9c803b58398f3b2f531103e024035210fb367d
Author: Takeshi Yoshino <tyoshino@chromium.org>
Date: Sat Jul 15 06:43:17 2017

Mark the charset parsing methods in HTTPParser as deprecated

FindCharsetInMediaType() looks for a substring that is likely to be
indicating the charset parameter loosely without performing ABNF
validation. New code should use the strict version in HttpUtil.

Bug: 674329, 743311
Change-Id: I9faa60dcb63e983a62aff74601ac16257da28e80
Reviewed-on: https://chromium-review.googlesource.com/564749
Commit-Queue: Takeshi Yoshino <tyoshino@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#486983}
[modify] https://crrev.com/ef9c803b58398f3b2f531103e024035210fb367d/third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequest.cpp
[modify] https://crrev.com/ef9c803b58398f3b2f531103e024035210fb367d/third_party/WebKit/Source/platform/network/HTTPParsers.cpp
[modify] https://crrev.com/ef9c803b58398f3b2f531103e024035210fb367d/third_party/WebKit/Source/platform/network/HTTPParsers.h

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