[webkit-reviews] review requested: [Bug 90535] Record metrics to measure the usage of WebKitBlobBuilder to eventually deprecate it : [Attachment 150745] Patch

[bugzilla-daemon at webkit.org]

Kinuko Yasuda <kinuko at chromium.org> has asked  for review:
Bug 90535: Record metrics to measure the usage of WebKitBlobBuilder to
eventually deprecate it
https://bugs.webkit.org/show_bug.cgi?id=90535

Attachment 150745: Patch
https://bugs.webkit.org/attachment.cgi?id=150745&action=review