The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/60bd5f6d6217b4b09ede3eea4be33c07fa976a95

commit 60bd5f6d6217b4b09ede3eea4be33c07fa976a95
Author: Carlos IL <carlosil@chromium.org>
Date: Tue Oct 09 19:51:27 2018

Add IsAutomaticUpgrade flag to ResourceRequest

Added a flag that gets set when a mixed content request was
autoupgraded to HTTPS, this will be later used to handle
fallbacks and log metrics.

Bug:  893684 

Change-Id: Idb62b407c75c0e2a7a629c178a8fcec7fad05bfe
Reviewed-on: https://chromium-review.googlesource.com/c/1269460
Commit-Queue: Carlos IL <carlosil@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#598046}
[modify] https://crrev.com/60bd5f6d6217b4b09ede3eea4be33c07fa976a95/third_party/blink/renderer/core/loader/frame_fetch_context_test.cc
[modify] https://crrev.com/60bd5f6d6217b4b09ede3eea4be33c07fa976a95/third_party/blink/renderer/core/loader/frame_loader.cc
[modify] https://crrev.com/60bd5f6d6217b4b09ede3eea4be33c07fa976a95/third_party/blink/renderer/platform/loader/fetch/resource_request.cc
[modify] https://crrev.com/60bd5f6d6217b4b09ede3eea4be33c07fa976a95/third_party/blink/renderer/platform/loader/fetch/resource_request.h