[webnfc] Implement push() method in blink nfc module.

third_party/WebKit/public/platform/modules/nfc/WebNFCPushOptions.h

-// Copyright 2015 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 WebNFCPushOptions_h
-#define WebNFCPushOptions_h
-
-#include "public/platform/modules/nfc/WebNFCPushTarget.h"
-
-namespace blink {
-
-// Contains members of NFCPushOption dictionary as specified in the IDL.
-struct WebNFCPushOptions {
-    WebNFCPushOptions(const WebNFCPushTarget& target = WebNFCPushTarget::Any, double timeout = std::numeric_limits<double>::infinity(), bool ignoreRead = true)
-        : target(target), timeout(timeout), ignoreRead(ignoreRead)
-    {
-    }
-
-    WebNFCPushTarget target;
-    double timeout; // in milliseconds
-    bool ignoreRead;
-};
-
-} // namespace blink
-
-#endif // WebNFCPushOptions_h