[Cronet] Separate Cronet implementation and API by package name.

components/cronet/android/test/javatests/src/org/chromium/net/BidirectionalStreamTest.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 android.os.ConditionVariable;
 import android.test.suitebuilder.annotation.SmallTest;
 
 import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.net.CronetTestBase.OnlyRunNativeCronet;
 import org.chromium.net.TestBidirectionalStreamCallback.FailureType;
 import org.chromium.net.TestBidirectionalStreamCallback.ResponseStep;
+import org.chromium.net.impl.CronetBidirectionalStream;
 
 import java.nio.ByteBuffer;
 import java.util.AbstractMap;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ skipping 1341 matching lines @@
     private static String bufferContentsToString(ByteBuffer byteBuffer, int start, int end) {
         // Use a duplicate to avoid modifying byteBuffer.
         ByteBuffer duplicate = byteBuffer.duplicate();
         duplicate.position(start);
         duplicate.limit(end);
         byte[] contents = new byte[duplicate.remaining()];
         duplicate.get(contents);
         return new String(contents);
     }
 }