The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8b286c96592958096a8c238f02e01052fb4085c4

commit 8b286c96592958096a8c238f02e01052fb4085c4
Author: Christopher Thompson <cthomp@chromium.org>
Date: Fri Feb 16 19:08:25 2018

Remove and deprecate ExperienceSamplingPrivate API

This removes the ExperienceSamplingPrivate extension API, which was used
only by the CUES extension (which is no longer in use). This also
removes all the instrumentation code that triggered the extension events
throughout the code base, and deprecates entries in enums.

Bug:  810420 
Change-Id: Ia155ad3feada4bac147f0960e05065c44d6978a3
Reviewed-on: https://chromium-review.googlesource.com/915121
Commit-Queue: Christopher Thompson <cthomp@chromium.org>
Reviewed-by: Min Qin <qinmin@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: Adrienne Porter Felt <felt@chromium.org>
Reviewed-by: Ken Rockot <rockot@chromium.org>
Reviewed-by: Istiaque Ahmed <lazyboy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537369}
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/app/generated_resources.grd
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/download/download_danger_prompt_browsertest.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/extensions/BUILD.gn
[delete] https://crrev.com/e363dc219abb57a818406fffcad3bb30555dab4c/chrome/browser/extensions/api/experience_sampling_private/OWNERS
[delete] https://crrev.com/e363dc219abb57a818406fffcad3bb30555dab4c/chrome/browser/extensions/api/experience_sampling_private/experience_sampling.cc
[delete] https://crrev.com/e363dc219abb57a818406fffcad3bb30555dab4c/chrome/browser/extensions/api/experience_sampling_private/experience_sampling.h
[delete] https://crrev.com/e363dc219abb57a818406fffcad3bb30555dab4c/chrome/browser/extensions/api/experience_sampling_private/experience_sampling_private_api.cc
[delete] https://crrev.com/e363dc219abb57a818406fffcad3bb30555dab4c/chrome/browser/extensions/api/experience_sampling_private/experience_sampling_private_api.h
[delete] https://crrev.com/e363dc219abb57a818406fffcad3bb30555dab4c/chrome/browser/extensions/api/experience_sampling_private/experience_sampling_private_api_unittest.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/extensions/extension_install_prompt.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/extensions/extension_install_prompt.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/interstitials/chrome_metrics_helper.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/interstitials/chrome_metrics_helper.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/safe_browsing/safe_browsing_blocking_page.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/safe_browsing/safe_browsing_blocking_page.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ssl/bad_clock_blocking_page.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ssl/captive_portal_blocking_page.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ssl/mitm_software_blocking_page.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ssl/ssl_blocking_page.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ssl/ssl_error_tab_helper_unittest.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/cocoa/download/download_danger_prompt_impl.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/cocoa/download/download_item_controller.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/cocoa/download/download_item_controller.mm
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/cocoa/extensions/extension_install_dialog_controller.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/cocoa/extensions/extension_install_dialog_controller.mm
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/views/download/download_danger_prompt_views.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/views/download/download_item_view.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/views/download/download_item_view.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/views/extensions/extension_install_dialog_view.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/browser/ui/views/extensions/extension_install_dialog_view.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/common/extensions/api/BUILD.gn
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/common/extensions/api/_api_features.json
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/common/extensions/api/_permission_features.json
[delete] https://crrev.com/e363dc219abb57a818406fffcad3bb30555dab4c/chrome/common/extensions/api/experience_sampling_private.json
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/common/extensions/permissions/chrome_api_permissions.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/common/extensions/permissions/chrome_permission_message_rules.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/chrome/test/BUILD.gn
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/components/security_interstitials/core/metrics_helper.cc
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/extensions/browser/extension_event_histogram_value.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/extensions/browser/extension_function_histogram_value.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/extensions/common/permissions/api_permission.h
[modify] https://crrev.com/8b286c96592958096a8c238f02e01052fb4085c4/tools/metrics/histograms/enums.xml