[Cronet] Enable chunked upload in CronetUrlRequest

components/cronet/android/java/src/org/chromium/net/CronetUploadDataStream.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 org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 import org.chromium.base.NativeClassQualifiedName;
 
@@ skipping 53 matching lines @@
     /**
      * Constructs a CronetUploadDataStream.
      * @param dataProvider the UploadDataProvider to read data from.
      * @param executor the Executor to execute UploadDataProvider tasks.
      */
     public CronetUploadDataStream(UploadDataProvider dataProvider,
             Executor executor) {
         mExecutor = executor;
         mDataProvider = dataProvider;
         mLength = mDataProvider.getLength();
-        if (mLength < 0) {
-            // TODO(mmenke):  Add tests and remove this line.
-            throw new IllegalArgumentException(
-                    "Chunked uploads not supported.");
-        }
     }
 
     /**
      * Called by native code to make the UploadDataProvider read data into
      * {@code byteBuffer}.
      */
     @SuppressWarnings("unused")
     @CalledByNative
     void readData(ByteBuffer byteBuffer) {
         mByteBuffer = byteBuffer;
@@ skipping 204 matching lines @@
     @NativeClassQualifiedName("CronetUploadDataStreamDelegate")
     private native void nativeOnReadSucceeded(long nativePtr,
             int bytesRead, boolean finalChunk);
 
     @NativeClassQualifiedName("CronetUploadDataStreamDelegate")
     private native void nativeOnRewindSucceeded(long nativePtr);
 
     private static native void nativeDestroyDelegate(
             long uploadDataStreamDelegate);
 }