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

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Issue 238803005: Scroll on main if impl-hit testing isn't guaranteed to be correct (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Address reviewer feedback. Created 6 years, 8 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 25cc5bdf6f5e4645b1fe12a635e576fa7f1e1216..64b629aff87e56210195a601777fe2a39a39499d 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -20869,6 +20869,17 @@ Therefore, the affected-histogram name has to have at least one dot in it.
</summary>
</histogram>
+<histogram name="Renderer4.CompositorScrollHitTestResult"
+ enum="CompositorScrollResult">
+ <owner>vollick@chromium.org</owner>
+ <summary>
+ It's possible for compositor hit testing to determine conclusively that
+ compositor thread scrolling can or cannot be done. It's also possible that
+ the hit testing result is inconclusive. We would like to see the I-don't-
+ know result as little as possible. This histogram tracks the ratios.
+ </summary>
+</histogram>
+
<histogram name="Renderer4.CompositorThreadImplDrawDelay" units="milliseconds">
<owner>wiltzius@chromium.org</owner>
<summary>
@@ -31133,6 +31144,13 @@ Therefore, the affected-histogram name has to have at least one dot in it.
<int value="2" label="Will use composited scrolling"/>
</enum>
+<enum name="CompositorScrollResult" type="int">
+ <int value="0" label="ScrollOnMainThread"/>
+ <int value="1" label="ScrollStarted"/>
+ <int value="2" label="ScrollIgnored"/>
+ <int value="3" label="ScrollUnknown"/>
+</enum>
+
<enum name="CompositorType" type="int">
<int value="0" label="Software compositor"/>
<int value="1" label="GPU compositor"/>

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