Run webgl_conformance_angle_tests on linux_optional_gpu_tests_rel.

testing/buildbot/chromium.gpu.fyi.json

Index: testing/buildbot/chromium.gpu.fyi.json
diff --git a/testing/buildbot/chromium.gpu.fyi.json b/testing/buildbot/chromium.gpu.fyi.json
index dd81fe3e84bcd76b8f8744ec338820f11df2d23f..fb4590f65f2a39a343a2ab6071b983a8d6359b0f 100644
--- a/testing/buildbot/chromium.gpu.fyi.json
+++ b/testing/buildbot/chromium.gpu.fyi.json
@@ -10073,6 +10073,29 @@
           ],
           "shards": 15
         }
+      },
+      {
+        "args": [
+          "webgl_conformance",
+          "--show-stdout",
+          "--browser=release",
+          "-v",
+          "--extra-browser-args=--enable-logging=stderr --js-flags=--expose-gc --use-gl=angle"
+        ],
+        "isolate_name": "telemetry_gpu_integration_test",
+        "name": "webgl_conformance_angle_tests",
+        "override_compile_targets": [
+          "telemetry_gpu_integration_test_run"
+        ],
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "gpu": "10de:104a",
+              "os": "Linux"
+            }
+          ]
+        }
       }
     ]
   },