[webnfc] Add public interfaces.

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

Index: third_party/WebKit/public/platform/modules/nfc/WebNFCWatchOptions.h
diff --git a/third_party/WebKit/public/platform/modules/nfc/WebNFCWatchOptions.h b/third_party/WebKit/public/platform/modules/nfc/WebNFCWatchOptions.h
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index 0000000000000000000000000000000000000000..3ac0cfaf949510dc62bfdd9ca8a70a07a6597ebf
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+++ b/third_party/WebKit/public/platform/modules/nfc/WebNFCWatchOptions.h
@@ -0,0 +1,55 @@
+// 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 WebNFCWatchOptions_h
+#define WebNFCWatchOptions_h
+
+#include "public/platform/WebString.h"
+
+namespace blink {
+
+enum class WebNFCRecordType;
+
+// Enumeration that is mapped to NFCWatchMode as specified in IDL.
+enum class WebNFCWatchMode {
+    WebNFCOnly,
+    Any,
+    ENUM_MAX_VALUE = Any
+};
+
+// Helper wrapper that is used to represent filter for all types of NFC records.
+class WebNFCRecordTypeFilter final {
+public:
+    WebNFCRecordTypeFilter() : m_matchAnyRecord(true) { }
+    explicit WebNFCRecordTypeFilter(const WebNFCRecordType& recordType) :
+        m_matchAnyRecord(false), m_recordType(recordType) { }
+
+    bool matchAnyRecord() const { return m_matchAnyRecord; }
+    WebNFCRecordType recordType() const { return m_recordType; }
+
+private:
+    bool m_matchAnyRecord;
+    WebNFCRecordType m_recordType;
+};
+
+// Contains members of NFCWatchOptions dictionary as specified in the IDL.
+struct WebNFCWatchOptions {
+    WebNFCWatchOptions(const WebString& url = "", const WebNFCRecordTypeFilter& recordFilter = WebNFCRecordTypeFilter(),
+        const WebString& mediaType = "", const WebNFCWatchMode& mode = WebNFCWatchMode::WebNFCOnly)
+    : url(url)
+    , recordFilter(recordFilter)
+    , mediaType(mediaType)
+    , mode(mode)
+    {
+    }
+
+    WebString url;
+    WebNFCRecordTypeFilter recordFilter;
+    WebString mediaType;
+    WebNFCWatchMode mode;
+};
+
+} // namespace blink
+
+#endif // WebNFCWatchOptions_h