Bug 1188141: Make Worker error events not bubble. r=baku

browser/devtools/webconsole/test/browser_webconsole_bug_595934_message_categories.js

@@ -42,7 +42,6 @@ const TESTS = [
     file: "test-bug-595934-workers.html",
     category: "Web Worker",
     matchString: "fooBarWorker",
-    expectError: true,
   },
   {
     // #4

dom/workers/WorkerPrivate.cpp

@@ -1565,7 +1565,7 @@ public:
       init.mFilename = aFilename;
       init.mLineno = aLineNumber;
       init.mCancelable = true;
-      init.mBubbles = true;
+      init.mBubbles = false;
 
       if (aTarget) {
         nsRefPtr<ErrorEvent> event =

testing/web-platform/meta/workers/Worker_ErrorEvent_bubbles_cancelable.htm.ini

@@ -1,5 +0,0 @@
-[Worker_ErrorEvent_bubbles_cancelable.htm]
-  type: testharness
-  [ErrorEvent on worker doesn't bubble and is cancelable]
-    expected: FAIL
-