Sends NetworkChangeNotifier connection type changes to Blink, to support NetInfo v3.

Design doc: https://docs.google.com/a/chromium.org/document/d/1LTk9uVMGi4kurzcF5ellsAJReTF31fFJMHrQwSVtBjc/

BUG=368358

Review URL: https://codereview.chromium.org/298803006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273555 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/renderer/net_info_helper.cc b/content/renderer/net_info_helper.cc
new file mode 100644
index 0000000..8e0d651
--- /dev/null
+++ b/content/renderer/net_info_helper.cc
@@ -0,0 +1,31 @@
+// 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 "content/renderer/net_info_helper.h"
+
+namespace content {
+
+blink::WebConnectionType
+NetConnectionTypeToWebConnectionType(
+    net::NetworkChangeNotifier::ConnectionType net_type) {
+  switch (net_type) {
+    case net::NetworkChangeNotifier::CONNECTION_UNKNOWN:
+      return blink::ConnectionTypeOther;
+    case net::NetworkChangeNotifier::CONNECTION_ETHERNET:
+      return blink::ConnectionTypeEthernet;
+    case net::NetworkChangeNotifier::CONNECTION_WIFI:
+      return blink::ConnectionTypeWifi;
+    case net::NetworkChangeNotifier::CONNECTION_NONE:
+      return blink::ConnectionTypeNone;
+    case net::NetworkChangeNotifier::CONNECTION_2G:
+    case net::NetworkChangeNotifier::CONNECTION_3G:
+    case net::NetworkChangeNotifier::CONNECTION_4G:
+      return blink::ConnectionTypeCellular;
+  }
+
+  NOTREACHED();
+  return blink::ConnectionTypeNone;
+}
+
+}  // namespace content