The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/416ca641c91de7c12b8079808cd29fa25a79325a

commit 416ca641c91de7c12b8079808cd29fa25a79325a
Author: Rafael Cintron <rafael.cintron@microsoft.com>
Date: Mon Dec 17 20:54:27 2018

Removed unused public variable from MemoryCacheEntry

MemoryCacheEntry::last_decoded_access_time was initialized to zero and read but never written to.

This change removes it from the code altogether

Change-Id: I3ac08fb1a0fb92d6de7b6812283e250750731b47
Bug:  915497 
Reviewed-on: https://chromium-review.googlesource.com/c/1379025
Commit-Queue: Hiroshige Hayashizaki <hiroshige@chromium.org>
Reviewed-by: Nate Chapin <japhet@chromium.org>
Reviewed-by: Hiroshige Hayashizaki <hiroshige@chromium.org>
Cr-Commit-Position: refs/heads/master@{#617221}
[modify] https://crrev.com/416ca641c91de7c12b8079808cd29fa25a79325a/third_party/blink/renderer/platform/loader/fetch/memory_cache.cc
[modify] https://crrev.com/416ca641c91de7c12b8079808cd29fa25a79325a/third_party/blink/renderer/platform/loader/fetch/memory_cache.h