[webkit-reviews] review requested: [Bug 68753] [WinCairo] BitmapImage::drawFrameMatchingSourceSize causes access violation if BitmapImage::frameAtIndex() returns NULL : [Attachment 122266] Avoid passing a null pointer to the Cairo library.

[bugzilla-daemon at webkit.org]

Brent Fulgham <bfulgham at webkit.org> has asked  for review:
Bug 68753: [WinCairo] BitmapImage::drawFrameMatchingSourceSize causes access
violation if BitmapImage::frameAtIndex() returns NULL
https://bugs.webkit.org/show_bug.cgi?id=68753

Attachment 122266: Avoid passing a null pointer to the Cairo library.
https://bugs.webkit.org/attachment.cgi?id=122266&action=review

------- Additional Comments from Brent Fulgham <bfulgham at webkit.org>
Since David never responded to my comments, I've revised the source change per
Adam's comment.  No test case provided since exercising this logic requires
calling WebKit API calls that are not used in the existing test infrastructure.