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

components/cronet/android/cronet_url_request_adapter.h

Index: components/cronet/android/cronet_url_request_adapter.h
diff --git a/components/cronet/android/cronet_url_request_adapter.h b/components/cronet/android/cronet_url_request_adapter.h
index eb442c4caa1cc818a36c70fe32ba752960614c19..d1593aaf524cbe215c2aa0a3269f70800226922e 100644
--- a/components/cronet/android/cronet_url_request_adapter.h
+++ b/components/cronet/android/cronet_url_request_adapter.h
@@ -39,6 +39,7 @@ namespace cronet {
 
 class CronetURLRequestContextAdapter;
 class IOBufferWithByteBuffer;
+class TestUtil;
 
 bool CronetUrlRequestAdapterRegisterJni(JNIEnv* env);
 
@@ -122,9 +123,9 @@ class CronetURLRequestAdapter : public net::URLRequest::Delegate {
   void OnResponseStarted(net::URLRequest* request, int net_error) override;
   void OnReadCompleted(net::URLRequest* request, int bytes_read) override;
 
-  net::URLRequest* GetURLRequestForTesting();
-
  private:
+  friend class TestUtil;
+
   void StartOnNetworkThread();
   void GetStatusOnNetworkThread(
       const base::android::ScopedJavaGlobalRef<jobject>& jstatus_listener_ref)