[dawn][tests] Update UnsupportedCount test to just wait until done.

- Update the test to only care about whether an error is surfaced.

Bug: 443308345
Change-Id: I512bcec6d023aa017312d1926022829ec5d94098
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/263794
Auto-Submit: Loko Kung <lokokung@google.com>
Commit-Queue: Loko Kung <lokokung@google.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>

src/dawn/tests/end2end/EventTests.cpp

diff --git a/src/dawn/tests/end2end/EventTests.cpp b/src/dawn/tests/end2end/EventTests.cpp
index 7cbb890..9e888f2 100644
--- a/src/dawn/tests/end2end/EventTests.cpp
+++ b/src/dawn/tests/end2end/EventTests.cpp
@@ -543,11 +543,6 @@
 
 TEST_P(WaitAnyTests, UnsupportedCount) {
     for (uint64_t timeout : {uint64_t(0), uint64_t(1)}) {
-        // TODO(crbug.com/443308345): D3D11's delay flush queue doesn't seem to work if we are only
-        // using a small timeout. It works if we increase the timeout to 0.2-0.3ms, but it should
-        // really be immediate.
-        DAWN_TEST_UNSUPPORTED_IF(timeout > 0 && HasToggleEnabled("d3d11_delay_flush_to_gpu"));
-
         // We don't support values higher than the default (64), and if you ask for lower than 64
         // you still get 64. DawnTest doesn't request anything (so requests 0) so gets 64.
         for (size_t count : {kTimedWaitAnyMaxCountDefault, kTimedWaitAnyMaxCountDefault + 1}) {
@@ -560,10 +555,9 @@
             FlushWire();
             wgpu::WaitStatus status = instance.WaitAny(infos.size(), infos.data(), timeout);
             if (timeout == 0) {
-                ASSERT_TRUE(status == wgpu::WaitStatus::Success ||
-                            status == wgpu::WaitStatus::TimedOut);
+                ASSERT_NE(status, wgpu::WaitStatus::Error);
             } else if (count <= 64) {
-                ASSERT_EQ(status, wgpu::WaitStatus::Success);
+                ASSERT_NE(status, wgpu::WaitStatus::Error);
             } else {
                 ASSERT_EQ(status, wgpu::WaitStatus::Error);
             }