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

components/cronet/android/test/javatests/src/org/chromium/net/CronetUrlRequestContextTest.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 static org.chromium.base.CollectionUtil.newHashSet;
 
 import android.content.Context;
 import android.content.ContextWrapper;
 import android.os.ConditionVariable;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.StrictMode;
 import android.test.suitebuilder.annotation.SmallTest;
 
 import org.chromium.base.PathUtils;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.FlakyTest;
 import org.chromium.net.CronetEngine.UrlRequestInfo;
 import org.chromium.net.TestUrlRequestCallback.ResponseStep;
+import org.chromium.net.impl.CronetLibraryLoader;
+import org.chromium.net.impl.CronetUrlRequestContext;
 import org.chromium.net.test.EmbeddedTestServer;
 
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileReader;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.NoSuchElementException;
 import java.util.concurrent.Executor;
@@ skipping 1250 matching lines @@
                     }
                 }.start();
                 otherThreadDone.block();
                 builder.build().shutdown();
                 uiThreadDone.open();
             }
         });
         assertTrue(uiThreadDone.block(1000));
     }
 }