The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4743ab9d5ecd967717bcffe6e68063c0d81c1ff8

commit 4743ab9d5ecd967717bcffe6e68063c0d81c1ff8
Author: keishi <keishi@chromium.org>
Date: Fri May 27 05:48:19 2016

Add deep report for BENCHMARK_MEMORY

Adds BENCHMARK_MEMORY tracing config.
And adds deep report triggered on low memory.

BUG=612102

Review-Url: https://codereview.chromium.org/1981823003
Cr-Commit-Position: refs/heads/master@{#396401}

[modify] https://crrev.com/4743ab9d5ecd967717bcffe6e68063c0d81c1ff8/chrome/browser/tracing/navigation_tracing.cc
[modify] https://crrev.com/4743ab9d5ecd967717bcffe6e68063c0d81c1ff8/content/browser/tracing/background_tracing_config_impl.cc
[modify] https://crrev.com/4743ab9d5ecd967717bcffe6e68063c0d81c1ff8/content/browser/tracing/background_tracing_config_impl.h
[modify] https://crrev.com/4743ab9d5ecd967717bcffe6e68063c0d81c1ff8/content/browser/tracing/background_tracing_config_unittest.cc
[modify] https://crrev.com/4743ab9d5ecd967717bcffe6e68063c0d81c1ff8/content/browser/tracing/background_tracing_manager_impl.cc

You started fixing this bug over two years ago. Are you still working on it?