Introduce NavigatorOnLine interface

Source/core/page/NavigatorOnLine.h

Index: Source/core/page/NavigatorOnLine.h
diff --git a/Source/core/svg/SVGUnknownElement.cpp b/Source/core/page/NavigatorOnLine.h
similarity index 85%
copy from Source/core/svg/SVGUnknownElement.cpp
copy to Source/core/page/NavigatorOnLine.h
index ecc0d2f2f186434ad83a947d92cca241c2bfa3b0..934cecbed1a524508ede97937b9bf15e435d9d9f 100644
--- a/Source/core/svg/SVGUnknownElement.cpp
+++ b/Source/core/page/NavigatorOnLine.h
@@ -28,14 +28,21 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "config.h"
-#include "core/svg/SVGUnknownElement.h"
+#ifndef NavigatorOnLine_h
+#define NavigatorOnLine_h
+
+#include "core/platform/network/NetworkStateNotifier.h"
 
 namespace WebCore {
 
-SVGUnknownElement::SVGUnknownElement(const QualifiedName& tagName, Document* document)
-    : SVGElement(tagName, document)
-{
+class NavigatorOnLine {

[haraken, 2013/08/20 10:28:51]

Nit: Previously you used a namespace for this kind of simple class :) Both are
fine.

[do-not-use, 2013/08/20 10:31:49]

I used a namespace first then got linking errors about having functions defined
multiple times (because I did not add a .cpp file). So I decided not to bother
and use a class with static functions.

+public:
+    static bool onLine(void*)
+    {
+        return networkStateNotifier().onLine();
+    }
+};
+
 }
 
-} // namespace WebCore
+#endif // NavigatorOnLine_h