The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e7bba4584ab1b59ded2d3b1fcf00b84715171185

commit e7bba4584ab1b59ded2d3b1fcf00b84715171185
Author: erikchen <erikchen@chromium.org>
Date: Fri Mar 16 16:50:18 2018

Remove "Memory", "Private Memory" and "Shared Memory" columns from Task Manager.

The only remaining memory related column will be "Memory Footprint" [and Swapped
Memory on CrOS].

For one-pager that was sent to chromium-dev, see:
https://docs.google.com/document/d/1fSTVHKl8K7wLpx8755LCxbacnPBes8GiEmyAtHshohU/edit#

Bug:  819678 
Change-Id: If579b0fb4f9ed8a4ef35010a1f22d00eb780ff7a
Reviewed-on: https://chromium-review.googlesource.com/957623
Commit-Queue: Erik Chen <erikchen@chromium.org>
Reviewed-by: Nick Carter <nick@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543731}
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/app/generated_resources.grd
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/chromeos/resource_reporter/resource_reporter.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/chromeos/resource_reporter/resource_reporter.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/chromeos/resource_reporter/resource_reporter_unittest.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/extensions/api/processes/processes_api.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/extensions/api/processes/processes_apitest.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/shared_sampler.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/shared_sampler_win.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/shared_sampler_win_unittest.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/task_group.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/task_group.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/task_group_sampler.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/task_group_sampler.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/task_group_unittest.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/task_manager_impl.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/sampling/task_manager_impl.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/task_manager_browsertest_util.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/task_manager_browsertest_util.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/task_manager_interface.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/task_manager_observer.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/task_manager_observer_unittest.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/task_manager_tester.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/test_task_manager.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/task_manager/test_task_manager.h
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/ui/task_manager/task_manager_columns.cc
[modify] https://crrev.com/e7bba4584ab1b59ded2d3b1fcf00b84715171185/chrome/browser/ui/task_manager/task_manager_table_model.cc

Issue 819699 has been merged into this issue.

 Issue 826350  has been merged into this issue.

 Issue 802966  has been merged into this issue.