Convert window-audioworklet.html with new Audit

third_party/WebKit/LayoutTests/webaudio/audioworklet/audioworklet-testing.js

-/* @global internals, Should */
-
-// Check if |internals| and its |runtimeFlags.AudioWorklet| are available.
-//
-// The content_shell driven by run-webkit-tests.py is supposed to enable
-// all the experimental web platform features. The flags are exposed via
-// |internals.runtimeFlag|.
-//
-// See: https://www.chromium.org/blink/runtime-enabled-features
-function checkInternalsAndAudioWorkletRuntimeFlag(taskDone) {
-
-  var isInternals = Should('window.internals', window.internals).exist();
-
-  if (!isInternals) {
-    taskDone();
-    return false;
-  }
-
-  var isFlag = Should('window.internals.runtimeFlags.audioWorkletEnabled',
-    window.internals.runtimeFlags.audioWorkletEnabled).beEqualTo(true);
-
-  if (!isFlag) {
-    taskDone();
-  }
-
-  return isFlag;
+/**
+ * Check if |window.internals| and |window.internals.runtimeFlags.AudioWorklet|
+ * are available.
+ *
+ * The content_shell driven by run-webkit-tests.py is supposed to enable all the
+ * experimental web platform features. The flags are exposed via
+ * |internals.runtimeFlag|.
+ *
+ * See: https://www.chromium.org/blink/runtime-enabled-features
+ *
+ * @return {Boolean}
+ */
+function isAudioWorkletEnabled() {
+  return {
+    onContentShell: Boolean(window.internals) &&
+                    Boolean(window.internals.runtimeFlags.audioWorkletEnabled),
+    onBrowser: Boolean(window.Worklet) && Boolean(window.audioWorklet)
+  };

[Raymond Toy, 2017/02/22 19:16:22]

Do we care if we're running with content shell or browser?  Can't we just check
if window.audioWorklet exists in either case?

[hongchan, 2017/02/22 19:23:38]

When a test relies on some experimental features, other examples usually use
'internal' and 'runtimeFlag'. So I wanted to capture that somehow. It's only two
more lines of code and I would like to use it other worklet tests. Sometimes
it's useful to see where your test is actually running on.

[Raymond Toy, 2017/02/22 19:31:29]

YAGNI?

 }