WIP: Some cronet modifications for the AndroidGSA

components/cronet/android/java/src/org/chromium/net/HttpUrlConnectionUrlRequest.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.net;
 
 import android.content.Context;
 import android.text.TextUtils;
 
 import org.apache.http.HttpStatus;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.nio.ByteBuffer;
 import java.nio.channels.ReadableByteChannel;
 import java.nio.channels.WritableByteChannel;
+import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.zip.GZIPInputStream;
 
 /**
  * Network request using the HttpUrlConnection implementation.
@@ skipping 415 matching lines @@
 
 
     @Override
     public String getHeader(String name) {
         if (mConnection == null) {
             throw new IllegalStateException("Response headers not available");
         }
         return mConnection.getHeaderField(name);
     }
 
+    @Override
+    public Map<String, List<String>> getAllHeaders() {
+        if (mConnection == null) {
+            throw new IllegalStateException("Response headers not available");
+        }
+        return mConnection.getHeaderFields();
+    }
+
     private void validateNotStarted() {
         if (mStarted) {
             throw new IllegalStateException("Request already started");
         }
     }
 }