Mac triage: over to one of the webui owners for triage.

Hm, we removed the chrome://plugins page not too long ago, with the argument that Flash is the only interesting plugin, and Flash information is available at chrome://flash :) I suspect this bug predates that and now chrome://flash is in fact the only source for that information.

My sense is that it can be safely removed.

The information on chrome://flash is largely an aggregation of data that can be found elsewhere (e.g., chrome://version - flash path, chrome://gpu - GPU info, chrome://crashes).  We also don't reference the url (chrome://flash) in any specific documentation.

As additional background on the removal of chrome://plugins.  It's correct that it was done because Flash was the last plugin but also that we wanted a single point of control that was in Chrome Settings.  

We must not lose the Flash version and the path that Flash was actually loaded from. It appears this is currently available on chrome://version.

All the other information on chrome://flash indeed seems generic (crashes are general, gpu information etc.)

I asked on a documentation thread whether there is any need for heads-up in the blog posts before we go ahead with this bug. 

A blog post entry for this shouldn't be necessary.

I am on this one already.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/05fe2faf641bb9c29fe9c454c8e3e6f0f7a65e80

commit 05fe2faf641bb9c29fe9c454c8e3e6f0f7a65e80
Author: Julian Pastarmov <pastarmovj@chromium.org>
Date: Wed Dec 12 21:25:30 2018

Remove chrome://flash page.

All information on this page is duplicate of information from other
sources.
The Flash plugin version and path can be found on chrome://version.
GPU information is present of chrome://gpu and crashes on chrome://crashes.

BUG= 615739 

Change-Id: Ic0dce75db63099715145a63cac82316494a87b12
Reviewed-on: https://chromium-review.googlesource.com/c/1373841
Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: Julian Pastarmov <pastarmovj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616047}
[modify] https://crrev.com/05fe2faf641bb9c29fe9c454c8e3e6f0f7a65e80/chrome/app/generated_resources.grd
[modify] https://crrev.com/05fe2faf641bb9c29fe9c454c8e3e6f0f7a65e80/chrome/browser/ui/BUILD.gn
[modify] https://crrev.com/05fe2faf641bb9c29fe9c454c8e3e6f0f7a65e80/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
[delete] https://crrev.com/07da7abb832823271c33c953c85530e27dd2c6d0/chrome/browser/ui/webui/flash_ui.cc
[delete] https://crrev.com/07da7abb832823271c33c953c85530e27dd2c6d0/chrome/browser/ui/webui/flash_ui.h
[modify] https://crrev.com/05fe2faf641bb9c29fe9c454c8e3e6f0f7a65e80/chrome/common/webui_url_constants.cc
[modify] https://crrev.com/05fe2faf641bb9c29fe9c454c8e3e6f0f7a65e80/chrome/common/webui_url_constants.h

Done.