[webkit-reviews] review requested: [Bug 34719] WebGL rendering results must be made available to Canvas.toDataURL and 2D drawImage : [Attachment 61170] revised patch: fix a bug

[bugzilla-daemon at webkit.org]

Zhenyao Mo <zmo at google.com> has asked  for review:
Bug 34719: WebGL rendering results must be made available to Canvas.toDataURL
and 2D drawImage
https://bugs.webkit.org/show_bug.cgi?id=34719

Attachment 61170: revised patch: fix a bug
https://bugs.webkit.org/attachment.cgi?id=61170&action=review

------- Additional Comments from Zhenyao Mo <zmo at google.com>
in WebGLRenderingContext::markedContextChanged(), always set the dirty flag
when context has changed.

Also, add another test canvas-test.html for this change.  (This test is copied
from WebGL conformance tests with minor modifications).