Remove redundant WebLocalFrame* parameter from didFinishDocumentLoad

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 49263604c7f4b7443f369213c95eb01dc43f6c79..8ed026274878af5a53fa08718f263c6a7dab82a9 100644
--- a/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
+++ b/third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp
@@ -168,17 +168,16 @@ void WebSharedWorkerImpl::loadShadowPage() {
                        SubstituteData(buffer, "text/html", "UTF-8", KURL())));
 }
 
-void WebSharedWorkerImpl::didFinishDocumentLoad(WebLocalFrame* frame) {
-  DCHECK_EQ(frame, m_mainFrame);
+void WebSharedWorkerImpl::didFinishDocumentLoad() {
   DCHECK(isMainThread());
   DCHECK(!m_loadingDocument);
   DCHECK(!m_mainScriptLoader);
-  frame->dataSource()->setServiceWorkerNetworkProvider(
+  m_mainFrame->dataSource()->setServiceWorkerNetworkProvider(
       WTF::wrapUnique(m_client->createServiceWorkerNetworkProvider()));
   m_mainScriptLoader = WorkerScriptLoader::create();
   m_mainScriptLoader->setRequestContext(
       WebURLRequest::RequestContextSharedWorker);
-  m_loadingDocument = toWebLocalFrameImpl(frame)->frame()->document();
+  m_loadingDocument = m_mainFrame->frame()->document();
 
   CrossOriginRequestPolicy crossOriginRequestPolicy =
       (static_cast<KURL>(m_url)).protocolIsData() ? AllowCrossOriginRequests