Worker: Stop running worker tests with BlinkGC::MainThreadHeapMode

third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h

Index: third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h
diff --git a/third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h b/third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h
index 44499cc0c809a90b320649f46a9caf45186ec990..c77f838312721d511123d424472580bbbdc37029 100644
--- a/third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h
+++ b/third_party/WebKit/Source/core/workers/WorkerThreadTestHelper.h
@@ -119,13 +119,11 @@ class MockWorkerThreadLifecycleObserver final
 class WorkerThreadForTest : public WorkerThread {
  public:
   WorkerThreadForTest(WorkerLoaderProxyProvider* mockWorkerLoaderProxyProvider,
-                      WorkerReportingProxy& mockWorkerReportingProxy,
-                      BlinkGC::ThreadHeapMode threadHeapMode)
+                      WorkerReportingProxy& mockWorkerReportingProxy)
       : WorkerThread(WorkerLoaderProxy::create(mockWorkerLoaderProxyProvider),
                      mockWorkerReportingProxy),
         m_workerBackingThread(
-            WorkerBackingThread::createForTest("Test thread", threadHeapMode)) {
-  }
+            WorkerBackingThread::createForTest("Test thread")) {}
 
   ~WorkerThreadForTest() override {}