tools/metrics/histograms/histograms.xml - Issue 23511012: Update histogram names for WebFont usage metrics

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Unified Diff: tools/metrics/histograms/histograms.xml

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Issue 23511012: Update histogram names for WebFont usage metrics (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Created 7 years, 3 months ago

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Index: tools/metrics/histograms/histograms.xml

diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml

index 996f2986a39f4facca2fb45c387b314e9b35bdb0..60bf755433700c72b5ce9d874c06dea2f7c3a067 100644

--- a/tools/metrics/histograms/histograms.xml

+++ b/tools/metrics/histograms/histograms.xml

@@ -17727,7 +17727,33 @@ other types of suffix sets.

</summary>

</histogram>

+<histogram name="WebFont.Resource.StyleRecalcToDownloadLatency"

+ units="milliseconds">

+ <summary>

+ The time from when the webfont was referenced by a calculated style for the

+ first time to the start of the font download. Recorded at most once for each

+ FontResource object (not recorded if the font is retrieved from the memory

+ cache).

+ </summary>

+</histogram>

+<histogram name="WebFont.Resource.UsageType" enum="WebFontUsageType">

+ <summary>

+ For each webfont, this records (a) if the font was 'styled', i.e. referenced

+ by a calculated style for a RenderText before the font data was used, and

+ (b) if the font was actually used or not, i.e. the renderer requested the

+ font data or not. (A Font can be used without being styled, for example when

+ drawn by a Canvas 2D Context.) This is recorded upon a download request of a

+ webfont, or destruction of a FontResource object. Recorded at most once for

+ each FontResource object on the renderer's memory cahce.

Ilya Sherman 2013/09/05 05:34:52 nit: "on" -> "in"?

Kunihiko Sakamoto 2013/09/05 05:38:58 Done.

+ </summary>

+</histogram>

+ <obsolete>

+ Deprecated as of 9/2013, replaced by

+ WebFont.Resource.StyleRecalcToDownloadLatency.

+ </obsolete>

The time from when the webfont was referenced by a calculated style for the

first time to the start of the font download.

@@ -17735,6 +17761,9 @@ other types of suffix sets.

</histogram>

+ <obsolete>

+ Deprecated as of 9/2013, replaced by WebFont.Resource.UsageType.

+ </obsolete>

For each webfont, this records (a) if the font was 'styled', i.e. referenced

by a calculated style for a RenderText before the font data was used, and

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