Skip ContextLost_WebGPUContextLostFromGPUProcessExit on chromeos

TBR=kbr@chromium.org

Bug: 1127541
Change-Id: I93f966abef09171d3fef2af833521d9ff9f2e4b9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2407070Reviewed-by: Shrek Shao <shrekshao@google.com>
Commit-Queue: Shrek Shao <shrekshao@google.com>
Cr-Commit-Position: refs/heads/master@{#806426}

content/test/gpu/gpu_tests/test_expectations/context_lost_expectations.txt

-# tags: [ android fuchsia linux lion mac mountainlion win win7 win8 win10]
+# tags: [ android chromeos fuchsia linux lion mac mountainlion win win7 win8 win10]
 # tags: [ debug ]
 # tags: [ intel nvidia qualcomm-adreno-(tm)-418 qualcomm-adreno-(tm)-420 ]
 # tags: [ asan no-asan ]
@@ -75,7 +75,8 @@ crbug.com/1122373 [ fuchsia ] ContextLost_WebGLContextLostFromQuantity [ Skip ]
 crbug.com/1105308 [ fuchsia ] ContextLost_WebGLBlockedAfterJSNavigation [ Skip ]
 crbug.com/1105308 [ fuchsia ] GpuNormalTermination_NewWebGLNotBlocked [ Skip ]
 
-# Webgpu not fully supported on Linux, Android, and Fuchsia
+# Webgpu not fully supported on Linux, Android, ChromeOS, and Fuchsia
 [ linux ] ContextLost_WebGPUContextLostFromGPUProcessExit [ Skip ]
 [ fuchsia ] ContextLost_WebGPUContextLostFromGPUProcessExit [ Skip ]
-[ android ] ContextLost_WebGPUContextLostFromGPUProcessExit [ Skip ]
\ No newline at end of file
+[ android ] ContextLost_WebGPUContextLostFromGPUProcessExit [ Skip ]
+[ chromeos ] ContextLost_WebGPUContextLostFromGPUProcessExit [ Skip ]
\ No newline at end of file