[webkit-reviews] review requested: [Bug 43449] [chromium] Generate drag images for HTML elements and selections. : [Attachment 64773] Patch

[bugzilla-daemon at webkit.org]

Daniel Cheng <dcheng at chromium.org> has asked  for review:
Bug 43449: [chromium] Generate drag images for HTML elements and selections.
https://bugs.webkit.org/show_bug.cgi?id=43449

Attachment 64773: Patch
https://bugs.webkit.org/attachment.cgi?id=64773&action=review

------- Additional Comments from Daniel Cheng <dcheng at chromium.org>
Add RAII and ImageBuffer creation check.