Merging ANGLE from Upstream

When pulling in a new revision of ANGLE, you must run the script ​Source/ThirdParty/ANGLE/update-angle.sh and follow its instructions. This script will attempt to update to a new version of ANGLE without losing WebKit changes.

Fixing ANGLE Bugs

When fixing bugs in ANGLE, please create a new bug on ​Monorail (Google's bug tracker) and attach the patch applied to WebKit so that changes can eventually be merged upstream instead of maintained locally. Be sure to update ​changes.diff when committing downstream changes.