Revert "Homogenize NTP loadtime histogram between C++ and Java" [chromium/src : main]

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Shunya Shishido (Gerrit)

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    Shunya Shishido (Gerrit)

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    Chromium LUCI CQ (Gerrit)

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    Jul 30, 2026, 8:44:42 PM (9 hours ago) Jul 30
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    Change information

    Commit message:
    Revert "Homogenize NTP loadtime histogram between C++ and Java"

    This reverts commit 69687e601640975cff478878700c476c4d5f26d2.

    Reason for revert: NewTabPagePageLoadMetricsBrowserTest#MetricsAreRecordedForNTP is failing on multiple platforms.

    Failure Link: https://ci.chromium.org/ui/p/chromium/builders/ci/linux-chromeos-rel/105589/overview

    Original change's description:
    > Homogenize NTP loadtime histogram between C++ and Java
    >
    > NewTabPage.LoadTime.FirstContentfulPaint is now replaced by
    > NewTabPage.LoadTime.FirstContentfulPaint2, which correctly matches the
    > buckets between the Java and C++ uses.
    >
    > NewTabPage.LoadTime.FirstContentfulPaint is still recorded for Android
    > desktop.
    >
    > Bug: 531793117
    > Change-Id: I057dbee5c9606bf09d5db6d8466dc06a6ed2b4df
    > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8171446
    > Reviewed-by: Ian Clelland <icle...@chromium.org>
    > Reviewed-by: Tibor Goldschwendt <tib...@chromium.org>
    > Commit-Queue: Aldo Culquicondor <aco...@chromium.org>
    > Auto-Submit: Aldo Culquicondor <aco...@chromium.org>
    > Cr-Commit-Position: refs/heads/main@{#1671446}
    Bug: 531793117, 540973617
    No-Presubmit: true
    No-Tree-Checks: true
    No-Try: true
    Bug: 531793117
    Change-Id: I117fbf8e8a2ac46a332b8de2633c3cba3fdefc54
    Commit-Queue: Shunya Shishido <sisid...@chromium.org>
    Owners-Override: Shunya Shishido <sisid...@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#1671553}
    Files:
    • M chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPage.java
    • M chrome/browser/page_load_metrics/observers/new_tab_page_page_load_metrics_observer.cc
    • M chrome/browser/page_load_metrics/observers/new_tab_page_page_load_metrics_observer.h
    • M components/page_load_metrics/browser/page_load_metrics_util.h
    • M tools/metrics/histograms/metadata/new_tab_page/histograms.xml
    Change size: S
    Delta: 5 files changed, 6 insertions(+), 42 deletions(-)
    Branch: refs/heads/main
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    Gerrit-Change-Id: I117fbf8e8a2ac46a332b8de2633c3cba3fdefc54
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