Build linux-chromeos (target_os="chromeos") with these gn args:

dcheck_always_on = true
is_debug = false
is_component_build = true
target_os = "chromeos"
use_goma = true
enable_nacl = false
is_chrome_branded = true

testing/xvfb.py out/Default/ash_unittests

[287/2459] AppListPresenterDelegateTest.DragToBezelClosesAppListFromFullscreenAndPeeking/1 (139 ms)
[288/2459] AppListPresenterDelegateTest.FlingDownClosesAppListFromFullscreenAndPeeking/0 (79 ms)
[289/2459] AppListPresenterDelegateTest.FlingDownClosesAppListFromFullscreenAndPeeking/1 (96 ms)
[290/2459] AppListPresenterDelegateTest.LongUpwardDragInFullscreenShouldNotClose/0 (294 ms)
[291/2459] AppListPresenterDelegateTest.LongUpwardDragInFullscreenShouldNotClose/1 (379 ms)
[292/2459] AppListPresenterDelegateHomeLauncherTest.ShowAppListForTabletMode (136 ms)
[293/2459] AppListPresenterDelegateHomeLauncherTest.ParentWindowContainer (113 ms)
[ RUN      ] AppListPresenterDelegateHomeLauncherTest.BackgroundOpacity
../../ash/app_list/app_list_presenter_delegate_unittest.cc:1062: Failure
Expected equality of these values:
  0.7f
    Which is: 0.7
  background_layer->opacity()
    Which is: 0.95
Stack trace:
#0 0x000000bebb4c testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop()
#1 0x000000beb529 testing::internal::AssertHelper::operator=()
#2 0x0000005e7f6a ash::AppListPresenterDelegateHomeLauncherTest_BackgroundOpacity_Test::TestBody()

[  FAILED  ] AppListPresenterDelegateHomeLauncherTest.BackgroundOpacity (195 ms)
[294/2459] AppListPresenterDelegateHomeLauncherTest.BackgroundOpacity (195 ms)
[ RUN      ] AppListPresenterDelegateHomeLauncherTest.BackgroundBlur
../../ash/app_list/app_list_presenter_delegate_unittest.cc:1075: Failure
Expected: (background_layer->background_blur()) > (0.0f), actual: 0 vs 0
Stack trace:
#0 0x000000bebb4c testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop()
#1 0x000000beb529 testing::internal::AssertHelper::operator=()
#2 0x0000005e830f ash::AppListPresenterDelegateHomeLauncherTest_BackgroundBlur_Test::TestBody()

[  FAILED  ] AppListPresenterDelegateHomeLauncherTest.BackgroundBlur (143 ms)

They succeed on retry.

The tests were added a few weeks ago in https://chromium-review.googlesource.com/c/chromium/src/+/1022710

This is annoying, since it slows down my runs of ash_unittests (retries are slow). It also means they might get flaky on the bots. I wonder if something is leaking state between the tests.