Adds NetInfo v3 Web API to Blink.

Source/modules/netinfo/NavigatorNetworkInfoConnection.h

+// 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.
+
+#ifndef NavigatorNetworkInfoConnection_h
+#define NavigatorNetworkInfoConnection_h
+
+#include "core/frame/Navigator.h"

[adamk, 2014/05/27 21:44:27]

I'll bet you don't need this include, since you have a forward-declaration
below.

[jkarlin, 2014/05/28 13:31:30]

Done.

+#include "platform/Supplementable.h"
+#include "platform/heap/Handle.h"
+
+namespace WebCore {
+
+class Navigator;
+class NetworkInfoConnection;
+
+class NavigatorNetworkInfoConnection FINAL
+    : public NoBaseWillBeGarbageCollectedFinalized<NavigatorNetworkInfoConnection>
+    , public WillBeHeapSupplement<Navigator>
+    , DOMWindowProperty {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NavigatorNetworkInfoConnection);
+
+public:
+    virtual ~NavigatorNetworkInfoConnection();
+    static NavigatorNetworkInfoConnection& from(Navigator&);
+    static NavigatorNetworkInfoConnection* toNavigatorNetworkInfoConnection(Navigator&);
+    static const char* supplementName();
+
+    static NetworkInfoConnection* connection(Navigator&);
+
+    void trace(Visitor*);

[adamk, 2014/05/27 21:44:27]

Please preface this with "virtual" and add an OVERRIDE annotation;
HeapSupplement has a trace() method you're overriding.

[jkarlin, 2014/05/28 13:31:30]

Done.

+
+private:
+    explicit NavigatorNetworkInfoConnection(Navigator&);
+    NetworkInfoConnection* connection();
+
+    RefPtrWillBeMember<NetworkInfoConnection> m_connection;
+};
+
+} // namespace WebCore
+
+#endif // NavigatorNetworkInfoConnection_h