Revert of Remove support for legacy WebKit Notifications

Source/modules/notifications/WorkerGlobalScopeNotifications.cpp

Index: Source/modules/notifications/WorkerGlobalScopeNotifications.cpp
diff --git a/Source/modules/notifications/WorkerGlobalScopeNotifications.cpp b/Source/modules/notifications/WorkerGlobalScopeNotifications.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..d2627658a3aab35185eb56bb55debdbb94c8a18b
--- /dev/null
+++ b/Source/modules/notifications/WorkerGlobalScopeNotifications.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All Rights Reserved.
+ * Copyright (C) 2009, 2011 Google Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "config.h"
+#include "modules/notifications/WorkerGlobalScopeNotifications.h"
+
+#if ENABLE(LEGACY_NOTIFICATIONS)
+
+#include "core/workers/WorkerGlobalScope.h"
+#include "core/workers/WorkerThread.h"
+#include "modules/notifications/NotificationCenter.h"
+
+namespace WebCore {
+
+WorkerGlobalScopeNotifications::WorkerGlobalScopeNotifications(WorkerGlobalScope& context)
+    : m_context(context)
+{
+}
+
+WorkerGlobalScopeNotifications::~WorkerGlobalScopeNotifications()
+{
+}
+
+const char* WorkerGlobalScopeNotifications::supplementName()
+{
+    return "WorkerGlobalScopeNotifications";
+}
+
+WorkerGlobalScopeNotifications& WorkerGlobalScopeNotifications::from(WorkerGlobalScope& context)
+{
+    WorkerGlobalScopeNotifications* supplement = static_cast<WorkerGlobalScopeNotifications*>(WorkerSupplement::from(context, supplementName()));
+    if (!supplement) {
+        supplement = new WorkerGlobalScopeNotifications(context);
+        WorkerSupplement::provideTo(context, supplementName(), adoptPtr(supplement));
+    }
+    return *supplement;
+}
+
+NotificationCenter* WorkerGlobalScopeNotifications::webkitNotifications(WorkerGlobalScope& context)
+{
+    return WorkerGlobalScopeNotifications::from(context).webkitNotifications();
+}
+
+NotificationCenter* WorkerGlobalScopeNotifications::webkitNotifications()
+{
+    if (!m_notificationCenter)
+        m_notificationCenter = NotificationCenter::create(&m_context, m_context.thread()->getNotificationClient());
+    return m_notificationCenter.get();
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(LEGACY_NOTIFICATIONS)