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

components/cronet/android/cronet_url_request_context_adapter.h

Index: components/cronet/android/cronet_url_request_context_adapter.h
diff --git a/components/cronet/android/cronet_url_request_context_adapter.h b/components/cronet/android/cronet_url_request_context_adapter.h
index d880b76d79ef369052e8bbdd679079801ea5ac3f..a58ecd3626f052c75ecd2065b0326b9df9d0b287 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.h
+++ b/components/cronet/android/cronet_url_request_context_adapter.h
@@ -40,6 +40,7 @@ class BoundedFileNetLogObserver;
 }  // namespace net
 
 namespace cronet {
+class TestUtil;
 
 #if defined(DATA_REDUCTION_PROXY_SUPPORT)
 class CronetDataReductionProxy;
@@ -132,6 +133,8 @@ class CronetURLRequestContextAdapter
       bool should);
 
  private:
+  friend class TestUtil;
+
   // Initializes |context_| on the Network thread.
   void InitializeOnNetworkThread(
       std::unique_ptr<URLRequestContextConfig> config,