[dawn][tests] Suppress ComputeDispatchTests.MaxWorkgroups for WARP.

The tests has recently become flaky. Suppressing the test for now
with a bug to fix it.

Bug: 435074717
Change-Id: If3f1e408cb34be486e551317ab04012732e0cead
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/255298
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>
Auto-Submit: Loko Kung <lokokung@google.com>
diff --git a/src/dawn/tests/end2end/ComputeDispatchTests.cpp b/src/dawn/tests/end2end/ComputeDispatchTests.cpp
index fbd03e9..135b102 100644
--- a/src/dawn/tests/end2end/ComputeDispatchTests.cpp
+++ b/src/dawn/tests/end2end/ComputeDispatchTests.cpp
@@ -269,6 +269,9 @@
     // TODO(crbug.com/dawn/1196): Fails on Chromium's Quadro P400 bots
     DAWN_SUPPRESS_TEST_IF(IsD3D12() && IsNvidia());
 #endif
+    // TODO(crbug.com/435074717): Flaky on WARP.
+    DAWN_SUPPRESS_TEST_IF(IsWARP());
+
     uint32_t max = GetSupportedLimits().maxComputeWorkgroupsPerDimension;
 
     // Test that the maximum works in each dimension.