Add support for Schema.org/Recipe

java/org/chromium/distiller/OpenGraphProtocolParser.java

 // 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.
 
 package org.chromium.distiller;
 
 import org.chromium.distiller.proto.DomDistillerProtos.TimingInfo;
 
 import com.google.gwt.core.client.JsArray;
 import com.google.gwt.dom.client.Element;
@@ skipping 207 matching lines @@
         return article;
     }
 
     @Override
     public boolean optOut() {
         // While this is not directly supported, the page owner can simply omit the required tags
         // and parse() will return a null OpenGraphProtocolParser.
         return false;
     }
 
+    @Override
+    public String getStructuredData() {
+        return "";
+    }
+
     /**
      * The object that has successfully extracted OpenGraphProtocol markup information from |root|.
      *
      * @throws Exception if the properties do not conform to the procotol i.e. not all required
      * properties exist.
      */
     private OpenGraphProtocolParser(Element root, TimingInfo timingInfo) throws Exception {
         mPropertyTable = new HashMap<String, String>();
         mPrefixes = new EnumMap<Prefix, String>(Prefix.class);
         mTimingInfo = timingInfo;
@@ skipping 288 matching lines @@
             mCheckedType = false;
             mIsArticleType = false;
             mAuthors = new ArrayList<String>();
         }
 
         private String[] getAuthors() {
             return mAuthors.toArray(new String[mAuthors.size()]);
         }
     }
 }