tree 90e4717c7d9a004568d34a20c2291bafc05bd1fa
parent ad07b7def505627e538b0d45f47d2a20424cddb2
author Justin Novosad <junov@chromium.org> 1671058590 -0800
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1671060777 -0800

[Reland] Use direct compositing for canvases rendered on the CPU

Before this CL, we already had the plumbing for presenting CPU-rendered
canvases via GpuMemoryBuffer for direct compositing.  That code path was
originally implemented to support LowLatency mode. With this change, we
exercise the GpuMemoryBuffer code path for "regular" latency canvases.
This accelerates compositing, especially for pages that have many
canvases.

With this change, MotionMark Images test runs significantly faster on
MacOS with angle/metal enabled.

Reland of original CL: https://chromium-review.googlesource.com/c/chromium/src/+/4081383

Bug: 1363627
Change-Id: I9380c7f722954af934a657a71c36c37122731f45
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4091749
Reviewed-by: Juanmi Huertas <juanmihd@chromium.org>
Commit-Queue: Justin Novosad <junov@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1083400}