Set the target type when creating the request for main resource

Source/web/WebSharedWorkerImpl.cpp

Index: Source/web/WebSharedWorkerImpl.cpp
diff --git a/Source/web/WebSharedWorkerImpl.cpp b/Source/web/WebSharedWorkerImpl.cpp
index 2d4a0ef08b396d868e2e0bf722e9535f81311bf3..735216b1343fbe61644ed13d929c068e5111c1bc 100644
--- a/Source/web/WebSharedWorkerImpl.cpp
+++ b/Source/web/WebSharedWorkerImpl.cpp
@@ -206,7 +206,9 @@ void WebSharedWorkerImpl::initializeLoader(const WebURL& url)
     CString content("");
     int length = static_cast<int>(content.length());
     RefPtr<SharedBuffer> buffer(SharedBuffer::create(content.data(), length));
-    webFrame->frame()->loader().load(FrameLoadRequest(0, ResourceRequest(url), SubstituteData(buffer, "text/html", "UTF-8", KURL())));
+    ResourceRequest request = ResourceRequest(url);
+    request.initializeForMainResource(!webFrame->parent());
+    webFrame->frame()->loader().load(FrameLoadRequest(0, request, SubstituteData(buffer, "text/html", "UTF-8", KURL())));
 }
 
 WebApplicationCacheHost* WebSharedWorkerImpl::createApplicationCacheHost(WebLocalFrame*, WebApplicationCacheHostClient* appcacheHostClient)