Histogram Cleanup Implementation Patterns

Use these patterns to identify and remove recording calls in C++, Java, and metadata in XML.

C++ Recording Removal

cpp

// Before
base::UmaHistogramBoolean("My.Expired.Histogram", true);

// After
// (Line removed)

Java/Android Recording Removal

java

// Before
RecordHistogram.recordBooleanHistogram("My.Expired.Histogram",true);

// After
// (Line removed)

XML Metadata Removal (histograms.xml)

xml

<!-- Before -->
<histogram name="My.Expired.Histogram" units="Boolean" expires_after="2023-01-01">
    <owner>[email protected]</owner>
    <summary>Description...</summary>
</histogram>

<!-- After -->
<!-- (Entry removed) -->