Adds type information to the NetworkStateNotifier. Also allows for registration of observers.

public/platform/WebNetworkConnection.h

Index: public/platform/WebNetworkConnection.h
diff --git a/public/platform/WebCanvas.h b/public/platform/WebNetworkConnection.h
similarity index 82%
copy from public/platform/WebCanvas.h
copy to public/platform/WebNetworkConnection.h
index d0de44c6e4f57fcadb48288e7b1baf1216c93736..54d5e3f1662824e64837c4e24e2b23f71042c147 100644
--- a/public/platform/WebCanvas.h
+++ b/public/platform/WebNetworkConnection.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Copyright (C) 2014 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
@@ -28,16 +28,24 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebCanvas_h
-#define WebCanvas_h
+#ifndef WebNetworkConnection_h
+#define WebNetworkConnection_h
 
 #include "WebCommon.h"
 
-class SkCanvas;
-
 namespace blink {
 
-typedef SkCanvas WebCanvas;
+struct WebNetworkConnection {
+    // Connection types from http://w3c.github.io/netinfo/.
+    enum ConnectionType {
+        Cellular = 0,
+        Bluetooth,
+        Ethernet,
+        Wifi,
+        Other,
+        None
+    };
+};
 
 } // namespace blink