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

components/cronet/android/test/src/org/chromium/net/SdchObserver.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 org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
+import org.chromium.net.impl.CronetUrlRequestContext;
 
 /**
  * Class to watch for Sdch dictionary events. The native implementation
  * unregisters itself when an event happens. Therefore, an instance of this
  * class is only able to receive a notification of the earliest event.
  * Currently, implemented events include {@link #onDictionaryAdded}.
  */
 @JNINamespace("cronet")
 public class SdchObserver {
     protected boolean mDictionaryAlreadyPresent = false;
     private final ConditionVariable mAddBlock = new ConditionVariable();
 
     /**
      * Constructor.
      * @param targetUrl the target url on which sdch encoding will be used.
      * @param contextAdapter the native context adapter to register the observer.
      */
-    public SdchObserver(String targetUrl, long contextAdapter) {
-        nativeAddSdchObserver(targetUrl, contextAdapter);
+    public SdchObserver(final String targetUrl, final CronetUrlRequestContext engine) {
+        CronetTestUtil.postToNetworkThread(engine, new Runnable() {
+            @Override
+            public void run() {
+                nativeAddSdchObserverOnNetworkThread(
+                        targetUrl, engine.getUrlRequestContextForTesting());
+            }
+        });
         mAddBlock.block();
         mAddBlock.close();
     }
 
     /**
      * Called when a dictionary is added to the SdchManager for the target url.
      * Override this method if caller would like to get notified.
      */
     @CalledByNative
     public void onDictionaryAdded() {
         // Left blank;
     }
 
     @CalledByNative
     private void onAddSdchObserverCompleted() {
         mAddBlock.open();
     }
 
     @CalledByNative
     private void onDictionarySetAlreadyPresent() {
         mDictionaryAlreadyPresent = true;
         mAddBlock.open();
     }
 
-    private native void nativeAddSdchObserver(String targetUrl, long contextAdapter);
+    private native void nativeAddSdchObserverOnNetworkThread(String targetUrl, long context);
 }