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

components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.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.impl;
 
 import android.content.Context;
 import android.os.Build;
 import android.os.ConditionVariable;
 import android.os.Handler;
@@ skipping 460 matching lines @@
     }
 
     @VisibleForTesting
     public long getUrlRequestContextAdapter() {
         synchronized (mLock) {
             checkHaveAdapter();
             return mUrlRequestContextAdapter;
         }
     }
 
+    @VisibleForTesting
+    public long getUrlRequestContextForTesting() {
+        synchronized (mLock) {
+            checkHaveAdapter();
+            return nativeGetUrlRequestContextForTesting(mUrlRequestContextAdapter);
+        }
+    }
+
     @GuardedBy("mLock")
     private void checkHaveAdapter() throws IllegalStateException {
         if (!haveRequestContextAdapter()) {
             throw new IllegalStateException("Engine is shut down.");
         }
     }
 
     @GuardedBy("mLock")
     private boolean haveRequestContextAdapter() {
         return mUrlRequestContextAdapter != 0;
@@ skipping 143 matching lines @@
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeConfigureNetworkQualityEstimatorForTesting(
             long nativePtr, boolean useLocalHostRequests, boolean useSmallerResponses);
 
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeProvideRTTObservations(long nativePtr, boolean should);
 
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeProvideThroughputObservations(long nativePtr, boolean should);
 
+    @NativeClassQualifiedName("CronetURLRequestContextAdapter")
+    private native long nativeGetUrlRequestContextForTesting(long nativePtr);
+
     public boolean isNetworkThread(Thread thread) {
         return thread == mNetworkThread;
     }
 }