[Fuchsia] Enable test suites on Fuchsia builders.

Bug: 1054240,1054545,1058255
Change-Id: I945f5de761168432078ecd9c1787289e9608f92b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2542304
Commit-Queue: Chong Gu <chonggu@google.com>
Reviewed-by: Brian Sheedy <bsheedy@chromium.org>
Auto-Submit: Chong Gu <chonggu@google.com>
Cr-Commit-Position: refs/heads/master@{#846053}

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

@@ -279,6 +279,9 @@ crbug.com/1136414 [ fuchsia ] conformance/ogles/GL/mat/mat_009_to_016.html [ Ski
 # Anti-aliasing disabled on Fuchsia
 [ fuchsia ] conformance/context/context-attributes-alpha-depth-stencil-antialias.html [ Failure ]
 
+# Fails when dcheck_always_on set to true
+[ fuchsia ] deqp/data/gles2/shaders/preprocessor.html [ Skip ]
+
 ####################
 # Win failures     #
 ####################

testing/buildbot/chromium.linux.json

@@ -4553,6 +4553,39 @@
           "service_account": "chromium-tester@chops-service-accounts.iam.gserviceaccount.com"
         },
         "test_id_prefix": "ninja://content/test:fuchsia_telemetry_gpu_integration_test/"
+      },
+      {
+        "args": [
+          "webgl_conformance",
+          "--show-stdout",
+          "--browser=web-engine-shell",
+          "--passthrough",
+          "-v",
+          "--extra-browser-args=--enable-logging=stderr --js-flags=--expose-gc"
+        ],
+        "isolate_name": "fuchsia_telemetry_gpu_integration_test",
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_isolated_script_merge.py"
+        },
+        "name": "webgl_conformance_tests",
+        "resultdb": {
+          "enable": true
+        },
+        "should_retry_with_patch": false,
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "kvm": "1",
+              "os": "Ubuntu-16.04"
+            }
+          ],
+          "idempotent": false,
+          "service_account": "chromium-tester@chops-service-accounts.iam.gserviceaccount.com",
+          "shards": 6
+        },
+        "test_id_prefix": "ninja://content/test:fuchsia_telemetry_gpu_integration_test/"
       }
     ]
   },

testing/buildbot/test_suite_exceptions.pyl

@@ -2668,7 +2668,6 @@
       # Too slow on this configuration, which is severely hardware
       # constrained. crbug.com/950690
       'Mac FYI Retina Debug (NVIDIA)',
-      'Fuchsia x64' # https://crbug.com/1058255
     ],
   },
   'webgl_conformance_validating_tests': {