base/metrics/histogram_base.h - Issue 1471073007: Reorganize histograms for persistence.

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Unified Diff: base/metrics/histogram_base.h

Issue 1471073007: Reorganize histograms for persistence. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@shmem-alloc

Patch Set: addressed review comments by Alexei Created 5 years ago

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Index: base/metrics/histogram_base.h

diff --git a/base/metrics/histogram_base.h b/base/metrics/histogram_base.h

index d246691ca257093851f7dc7c6393d7af51a3285b..f45cc9c106e323e83791265a57cbefaa3352011b 100644

--- a/base/metrics/histogram_base.h

+++ b/base/metrics/histogram_base.h

@@ -104,6 +104,9 @@ class BASE_EXPORT HistogramBase {

// in more compact machine code being generated by the macros.

void CheckName(const StringPiece& name) const;

+ // Get a unique ID for this histogram's samples.

+ virtual uint64_t name_hash() const = 0;

// Operations with Flags enum.

int32_t flags() const { return subtle::NoBarrier_Load(&flags_); }

void SetFlags(int32_t flags);

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