Add PrewarmPrerenderCoverageStatus metric and deprecate legacy metrics [chromium/src : main]

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Jiacheng Guo (Gerrit)

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7:43 AM (4 hours ago) 7:43 AM

to prerendering-reviews, chromium...@chromium.org, Chromium Metrics Reviews, asvitkine...@chromium.org, bmcquad...@chromium.org, lingqi...@chromium.org, csharris...@chromium.org, speed-metrics...@chromium.org, gavin...@chromium.org, loading-rev...@chromium.org, tburkar...@chromium.org, speed-metr...@chromium.org

Jiacheng Guo has uploaded the change for review

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Add PrewarmPrerenderCoverageStatus metric and deprecate legacy metrics

Introduce the SearchPrewarmPrerenderCoverageStatus enum and UMA metric
to track the full funnel of prewarm and prerender coverage on Google
Search navigations. Deprecate legacy metrics PrewarmNavigationStatus2
and HadPriorPrewarmCommitStatus2.

Bug: 473593133

Change-Id: I121709fc076c96c560eb33c4d75fcba47bf5503c

Change diff

Change information

Files:

M chrome/browser/page_load_metrics/observers/gws_page_load_metrics_observer_browsertest.cc
M chrome/browser/page_load_metrics/observers/gws_page_load_metrics_observer_unittest.cc
M chrome/browser/preloading/prerender/dse_prewarm_navigation_throttle_browsertest.cc
M chrome/browser/preloading/prerender/prerender_manager.cc
M chrome/browser/preloading/prerender/search_preload_progress_service.cc
M chrome/browser/preloading/prerender/search_preload_progress_service.h
M chrome/browser/preloading/prerender/search_preload_progress_service_unittest.cc
M components/page_load_metrics/google/browser/BUILD.gn
M components/page_load_metrics/google/browser/gws_page_load_metrics_observer.cc
M components/page_load_metrics/google/browser/gws_page_load_metrics_observer.h
A components/page_load_metrics/google/browser/search_prewarm_types.cc
A components/page_load_metrics/google/browser/search_prewarm_types.h
M tools/metrics/histograms/metadata/page/enums.xml
M tools/metrics/histograms/metadata/page/histograms.xml

Change size: L

Delta: 14 files changed, 743 insertions(+), 92 deletions(-)

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