Add expectations for failing tests on Dawn -> Chromium rolls

Example https://chromium-review.googlesource.com/c/chromium/src/+/5538330

Bug: 340494395
Change-Id: I7262a4321685ba16508e40d926b568f790546429
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/188300
Reviewed-by: Brian Sheedy <bsheedy@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
diff --git a/webgpu-cts/expectations.txt b/webgpu-cts/expectations.txt
index f491b37..d7f8087 100644
--- a/webgpu-cts/expectations.txt
+++ b/webgpu-cts/expectations.txt
@@ -951,6 +951,7 @@
 crbug.com/tint/2033 [ android-r ] webgpu:shader,execution,expression,call,builtin,atomics,atomicExchange:exchange_storage_basic:workgroupSize=1;dispatchSize=16;mapId="remap";scalarType="u32" [ Failure ]
 crbug.com/tint/2033 [ android-r ] webgpu:shader,execution,expression,call,builtin,atomics,atomicExchange:exchange_storage_basic:workgroupSize=1;dispatchSize=4;mapId="remap";scalarType="u32" [ Failure ]
 crbug.com/tint/2033 [ android-r ] webgpu:shader,execution,expression,call,builtin,atomics,atomicExchange:exchange_storage_basic:workgroupSize=1;dispatchSize=8;mapId="remap";scalarType="u32" [ Failure ]
+crbug.com/340494395 [ android-pixel-4 android-r ] webgpu:shader,execution,expression,call,builtin,workgroupUniformLoad:types:type="array%3Cu32,%204%3E";wgsize=[16,16] [ Failure ]
 
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 # DXC failures