GitLab

Contains:

Revert "Workaround to prevent crashes when destroying CGL contexts"
This reverts commit 282049cc.

Revert "Log erros while presenting an IOSurface to about:gpu"
This reverts commit 090e36f0.

Revert "Simplify IOSurface CoreAnimation code: Part 2"
This reverts commit 672e23e9.
Resolved conflicts:
	content/browser/compositor/io_surface_layer_mac.mm

Fixed call ccameron@ pointed out in: https://codereview.chromium.org/490393002/diff/260001/content/browser/compositor/io_surface_layer_mac.mm#oldcode149

Build fixes for recent scoped_refptr changes.

BUG=314190,408986,411782
R=piman@chromium.org
TBR=ccameron@chromium.org,pfeldman@chromium.org

Review URL: https://codereview.chromium.org/596703006

Cr-Commit-Position: refs/heads/master@{#296449}