[Cronet] Enable chunked upload in CronetUrlRequest

components/cronet/android/test/javatests/src/org/chromium/net/TestDataProvider.java

 // 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.
 
 package org.chromium.net;
 
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.concurrent.Executor;
@@ skipping 101 matching lines @@
         assertIdle();
 
         if (maybeFailRead(currentReadCall, uploadDataSink)) {
             mFailed = true;
             return;
         }
 
         mReadPending = true;
         mStarted = true;
 
-        final boolean finalChunk = (mChunked && mNextRead == mReads.size());
+        final boolean finalChunk = (mChunked && mNextRead == mReads.size() - 1);
         if (mNextRead < mReads.size()) {
             if ((byteBuffer.limit() - byteBuffer.position())
                     < mReads.get(mNextRead).length) {
                 throw new IllegalStateException(
                         "Read buffer smaller than expected.");
             }
             byteBuffer.put(mReads.get(mNextRead));
             ++mNextRead;
-        } else if (!finalChunk) {
+        } else {
             throw new IllegalStateException(
                     "Too many reads: " + mNextRead);
         }
 
         Runnable completeRunnable = new Runnable() {
             @Override
             public void run() {
                 mReadPending = false;
                 uploadDataSink.onReadSucceeded(finalChunk);
             }
@@ skipping 94 matching lines @@
                                 "Async rewind failure"));
                     }
                 };
                 mExecutor.execute(errorRunnable);
                 return true;
             default:
                 return false;
         }
     }
 }