[webkit-reviews] review requested: [Bug 93558] [chromium] Pass mask scale and offset to shaders for correct masking : [Attachment 157504] Added layout test and fixed errors

[bugzilla-daemon at webkit.org]

Shawn Singh <shawnsingh at chromium.org> has asked  for review:
Bug 93558: [chromium] Pass mask scale and offset to shaders for correct masking
https://bugs.webkit.org/show_bug.cgi?id=93558

Attachment 157504: Added layout test and fixed errors
https://bugs.webkit.org/attachment.cgi?id=157504&action=review