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

third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp

Index: third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp b/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
index fedea814c8b2eae06a68c0437434f3588cc3a91b..7686ed779fc3ac98c1788a07141095bb43de3941 100644
--- a/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
+++ b/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
@@ -402,7 +402,8 @@ void WebSharedWorkerImpl::onScriptLoaderFinished() {
                                 : nullptr,
           m_mainScriptLoader->getReferrerPolicy(), starterOrigin, workerClients,
           m_mainScriptLoader->responseAddressSpace(),
-          m_mainScriptLoader->originTrialTokens(), std::move(workerSettings));
+          m_mainScriptLoader->originTrialTokens(), std::move(workerSettings),
+          WorkerV8Settings::Default());
 
   // SharedWorker can sometimes run tasks that are initiated by/associated with
   // a document's frame but these documents can be from a different process. So