[webkit-reviews] review requested: [Bug 134857] Add an ensure function on HashMap that takes a key and a function to make the lazy value initialization idiom easier : [Attachment 271520] Patch

[bugzilla-daemon at webkit.org]

Sam Weinig <sam at webkit.org> has asked  for review:
Bug 134857: Add an ensure function on HashMap that takes a key and a function
to make the lazy value initialization idiom easier
https://bugs.webkit.org/show_bug.cgi?id=134857

Attachment 271520: Patch

https://bugs.webkit.org/attachment.cgi?id=271520&action=review