[webkit-changes] [WebKit/WebKit] e1280c: [ANGLE] Don't lose Metal-backed contexts for non-f...

[Dan Glastonbury]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: e1280c457e8cab275fc3483e816c59d95fd1a2c7
      https://github.com/WebKit/WebKit/commit/e1280c457e8cab275fc3483e816c59d95fd1a2c7
  Author: Dan Glastonbury <djg at apple.com>
  Date:   2023-09-08 (Fri, 08 Sep 2023)

  Changed paths:
    M Source/ThirdParty/ANGLE/changes.diff
    M Source/ThirdParty/ANGLE/src/libANGLE/renderer/metal/mtl_command_buffer.mm

  Log Message:
  -----------
  [ANGLE] Don't lose Metal-backed contexts for non-fatal errors
https://bugs.webkit.org/show_bug.cgi?id=261313
rdar://115152037

Reviewed by Kimmo Kinnunen.

Since Bug 257584, Any errors from Metal command buffer submission are treated as
causing a lost device.

MTLCommandBufferErrorNotPermitted is a non-fatal error that is reported when a
page with active WebGL moves to the background on iPhoneOS/iPadOS. This error is
ignored to avoid needlessly losing all WebGL contexts since they can't be
recovered once lost and need to be recreated.

* Source/ThirdParty/ANGLE/changes.diff:
* Source/ThirdParty/ANGLE/src/libANGLE/renderer/metal/mtl_command_buffer.mm:
(rx::mtl::CommandQueue::onCommandBufferCompleted):

Canonical link: https://commits.webkit.org/267784@main