[Cronet] Test the libcronet that's shipped, not libcronet_test

components/cronet/android/test/javaperftests/src/org/chromium/net/CronetPerfTestActivity.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.annotation.SuppressLint;
 import android.app.Activity;
 import android.net.Uri;
 import android.os.AsyncTask;
@@ skipping 171 matching lines @@
                     throw new IllegalArgumentException("Unknown protocol: " + protocol);
             }
             try {
                 mUrl = new URL(scheme, host, port, resource);
             } catch (MalformedURLException e) {
                 throw new IllegalArgumentException(
                         "Bad URL: " + host + ":" + port + "/" + resource);
             }
             final CronetEngine.Builder cronetEngineBuilder =
                     new CronetEngine.Builder(CronetPerfTestActivity.this);
-            cronetEngineBuilder.setLibraryName("cronet_tests");
+            System.loadLibrary("cronet_tests");
             if (mProtocol == Protocol.QUIC) {
                 cronetEngineBuilder.enableQuic(true);
                 cronetEngineBuilder.addQuicHint(host, port, port);
                 cronetEngineBuilder.setMockCertVerifierForTesting(
                         MockCertVerifier.createMockCertVerifier(
                                 new String[] {getConfigString("QUIC_CERT_FILE")}, true));
             }
 
             try {
                 JSONObject quicParams = new JSONObject().put("host_whitelist", host);
@@ skipping 417 matching lines @@
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         // Initializing application context here due to lack of custom CronetPerfTestApplication.
         ContextUtils.initApplicationContext(getApplicationContext());
         PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
         mConfig = getIntent().getData();
         // Execute benchmarks on another thread to avoid networking on main thread.
         new BenchmarkTask().execute();
     }
 }