Make workers inherit the large heap limit of the main isolate.

third_party/WebKit/Source/modules/compositorworker/CompositorWorkerThreadTest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/compositorworker/CompositorWorkerThread.h"
 
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/SourceLocation.h"
 #include "bindings/core/v8/V8GCController.h"
 #include "bindings/core/v8/WorkerOrWorkletScriptController.h"
@@ skipping 97 matching lines @@
 
   std::unique_ptr<CompositorWorkerThread> createCompositorWorker() {
     std::unique_ptr<CompositorWorkerThread> workerThread =
         CompositorWorkerThread::create(nullptr, *m_objectProxy, 0);
     WorkerClients* clients = WorkerClients::create();
     provideCompositorProxyClientTo(clients, new TestCompositorProxyClient);
     workerThread->start(WorkerThreadStartupData::create(
         KURL(ParsedURLString, "http://fake.url/"), "fake user agent",
         "//fake source code", nullptr, DontPauseWorkerGlobalScopeOnStart,
         nullptr, "", m_securityOrigin.get(), clients, WebAddressSpaceLocal,
-        nullptr, nullptr, V8CacheOptionsDefault));
+        nullptr, nullptr, WorkerV8Settings::Default()));
     return workerThread;
   }
 
   // Attempts to run some simple script for |worker|.
   void checkWorkerCanExecuteScript(WorkerThread* worker) {
     std::unique_ptr<WaitableEvent> waitEvent = WTF::makeUnique<WaitableEvent>();
     worker->workerBackingThread().backingThread().postTask(
         BLINK_FROM_HERE,
         crossThreadBind(&CompositorWorkerThreadTest::executeScriptInWorker,
                         crossThreadUnretained(this),
@@ skipping 113 matching lines @@
   ASSERT_TRUE(secondIsolate);
   EXPECT_EQ(firstIsolate, secondIsolate);
 
   // Verify that the isolate can run some scripts correctly in the second
   // worker.
   checkWorkerCanExecuteScript(secondWorker.get());
   secondWorker->terminateAndWait();
 }
 
 }  // namespace blink