Adds WebWorker support to NetInfo v3.

Source/modules/netinfo/WorkerNavigatorNetworkInformation.cpp

+// Copyright 2014 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 "config.h"
+#include "modules/netinfo/WorkerNavigatorNetworkInformation.h"
+
+#include "core/workers/WorkerNavigator.h"
+#include "modules/netinfo/NetworkInformation.h"
+
+namespace WebCore {
+
+WorkerNavigatorNetworkInformation::WorkerNavigatorNetworkInformation(WorkerNavigator& navigator, ExecutionContext* context)
+{
+}
+
+WorkerNavigatorNetworkInformation::~WorkerNavigatorNetworkInformation()
+{
+}
+
+WorkerNavigatorNetworkInformation& WorkerNavigatorNetworkInformation::from(WorkerNavigator& navigator, ExecutionContext* context)
+{
+    WorkerNavigatorNetworkInformation* supplement = toWorkerNavigatorNetworkInformation(navigator, context);
+    if (!supplement) {
+        supplement = new WorkerNavigatorNetworkInformation(navigator, context);
+        provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
+    }
+    return *supplement;
+}
+
+WorkerNavigatorNetworkInformation* WorkerNavigatorNetworkInformation::toWorkerNavigatorNetworkInformation(WorkerNavigator& navigator, ExecutionContext* context)
+{
+    return static_cast<WorkerNavigatorNetworkInformation*>(WillBeHeapSupplement<WorkerNavigator>::from(navigator, supplementName()));
+}
+
+const char* WorkerNavigatorNetworkInformation::supplementName()
+{
+    return "WorkerNavigatorNetworkInformation";
+}
+
+NetworkInformation* WorkerNavigatorNetworkInformation::connection(ExecutionContext* context, WorkerNavigator& navigator)
+{
+    return WorkerNavigatorNetworkInformation::from(navigator, context).connection(context);
+}
+
+void WorkerNavigatorNetworkInformation::trace(Visitor* visitor)
+{
+    visitor->trace(m_connection);
+    WillBeHeapSupplement<WorkerNavigator>::trace(visitor);
+}
+
+NetworkInformation* WorkerNavigatorNetworkInformation::connection(ExecutionContext* context)
+{
+    ASSERT(context);
+    if (!m_connection)
+        m_connection = NetworkInformation::create(context);
+    return m_connection.get();
+}
+
+} // namespace WebCore