[Fuchsia] enable viz_unittests on Fuchsia bots

viz_unittests now pass on Fuchsia (with headless ozone platform), so
they can be enabled on the bots.

Also added --child-arg argument in the test runner, which makes it
easier to pass custom arguments to the test binary.

Bug: 961455
Change-Id: I923af4978658b57d4da00a68fab8fdb3449ff47d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1725157
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Auto-Submit: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#682184}

build/fuchsia/test_runner.py

@@ -62,12 +62,14 @@ def main():
   parser.add_argument('--enable-test-server', action='store_true',
                       default=False,
                       help='Enable Chrome test server spawner.')
-  parser.add_argument('child_args', nargs='*',
-                      help='Arguments for the test process.')
   parser.add_argument('--test-launcher-bot-mode', action='store_true',
                       default=False,
                       help='Informs the TestLauncher to that it should enable '
                       'special allowances for running on a test bot.')
+  parser.add_argument('--child-arg', action='append',
+                      help='Arguments for the test process.')
+  parser.add_argument('child_args', nargs='*',
+                      help='Arguments for the test process.')
   args = parser.parse_args()
   ConfigureLogging(args)
 
@@ -94,12 +96,14 @@ def main():
         '--test-launcher-retry-limit=' + args.test_launcher_retry_limit)
   if args.gtest_break_on_failure:
     child_args.append('--gtest_break_on_failure')
-  if args.child_args:
-    child_args.extend(args.child_args)
-
   if args.test_launcher_summary_output:
     child_args.append('--test-launcher-summary-output=' + TEST_RESULT_PATH)
 
+  if args.child_arg:
+    child_args.extend(args.child_arg)
+  if args.child_args:
+    child_args.extend(args.child_args)
+
   with GetDeploymentTargetForArgs(args) as target:
     target.Start()
 

testing/buildbot/chromium.fyi.json

@@ -7010,6 +7010,25 @@
         },
         "test": "ui_base_unittests"
       },
+      {
+        "args": [
+          "--child-arg=--ozone-platform=headless"
+        ],
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_gtest_merge.py"
+        },
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "cpu": "arm64",
+              "os": "Ubuntu-16.04"
+            }
+          ]
+        },
+        "test": "viz_unittests"
+      },
       {
         "merge": {
           "args": [],
@@ -7493,6 +7512,25 @@
         },
         "test": "ui_base_unittests"
       },
+      {
+        "args": [
+          "--child-arg=--ozone-platform=headless"
+        ],
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_gtest_merge.py"
+        },
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "kvm": "1",
+              "os": "Ubuntu-16.04"
+            }
+          ]
+        },
+        "test": "viz_unittests"
+      },
       {
         "merge": {
           "args": [],
@@ -7995,6 +8033,25 @@
         },
         "test": "ui_base_unittests"
       },
+      {
+        "args": [
+          "--child-arg=--ozone-platform=headless"
+        ],
+        "merge": {
+          "args": [],
+          "script": "//testing/merge_scripts/standard_gtest_merge.py"
+        },
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "kvm": "1",
+              "os": "Ubuntu-16.04"
+            }
+          ]
+        },
+        "test": "viz_unittests"
+      },
       {
         "merge": {
           "args": [],

testing/buildbot/test_suite_exceptions.pyl

@@ -1603,6 +1603,8 @@
     'remove_from': [
       # chromium.win
       'Win10 Tests x64',
+      # chromium.linux
+      'Fuchsia x64',  # https://crbug.com/961455
     ],
   },
   'vr_pixeltests': {

testing/buildbot/test_suites.pyl

@@ -2776,6 +2776,11 @@
           '--test-launcher-filter-file=../../testing/buildbot/filters/fuchsia.ui_base_unittests.filter',
         ],
       },
+      'viz_unittests': {
+        'args': [
+          '--child-arg=--ozone-platform=headless',
+        ],
+      },
       'web_engine_browsertests': {},
       'web_engine_integration_tests': {},
       'web_engine_unittests': {},