Mark Fuchsia tests as failing

Marks complex-glsl-does-not-crash.html as expected to fail on several
Fuchsia devices instead of being slow, as the test is currently too
slow on those devices for an increased timeout to be sufficient.

Bug: 1427243
Change-Id: I1d133b099219984d0ae11effabecd19626045cb2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4378620
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Brian Sheedy <bsheedy@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1123355}

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

@@ -335,8 +335,6 @@ crbug.com/1426916 [ chromeos chromeos-board-amd64-generic no-passthrough ] confo
 crbug.com/1426916 [ chromeos chromeos-board-amd64-generic no-passthrough ] conformance/extensions/webgl-compressed-texture-astc.html [ Slow ]
 crbug.com/1426916 [ chromeos chromeos-board-amd64-generic no-passthrough ] conformance/reading/read-pixels-test.html [ Slow ]
 crbug.com/1426916 [ chromeos chromeos-board-amd64-generic no-passthrough ] conformance/textures/misc/tex-image-and-sub-image-2d-with-array-buffer-view.html [ Slow ]
-crbug.com/1427243 [ fuchsia fuchsia-board-astro ] conformance/glsl/bugs/complex-glsl-does-not-crash.html [ Slow ]
-crbug.com/1427243 [ fuchsia fuchsia-board-sherlock ] conformance/glsl/bugs/complex-glsl-does-not-crash.html [ Slow ]
 
 ###################
 # Failures/Flakes #
@@ -402,6 +400,10 @@ crbug.com/1371306 [ fuchsia fuchsia-board-sherlock ] conformance/textures/misc/t
 # Anti-aliasing disabled on Fuchsia
 [ fuchsia ] conformance/context/context-attributes-alpha-depth-stencil-antialias.html [ Failure ]
 
+# Slow enough that Slow expectations are not currently sufficient.
+crbug.com/1427243 [ fuchsia fuchsia-board-astro ] conformance/glsl/bugs/complex-glsl-does-not-crash.html [ Failure ]
+crbug.com/1427243 [ fuchsia fuchsia-board-sherlock ] conformance/glsl/bugs/complex-glsl-does-not-crash.html [ Failure ]
+
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 # Win failures     #
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