Use std::default_delete as the default deleter for scoped_ptr.

components/cronet/android/cronet_url_request_context_adapter.cc

Index: components/cronet/android/cronet_url_request_context_adapter.cc
diff --git a/components/cronet/android/cronet_url_request_context_adapter.cc b/components/cronet/android/cronet_url_request_context_adapter.cc
index 67dad4ef35028a612edf1ac88c01348962dbf16f..0e6d9f02707a6802feef86d79624370cce9613c8 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.cc
+++ b/components/cronet/android/cronet_url_request_context_adapter.cc
@@ -171,7 +171,7 @@ void CronetURLRequestContextAdapter::InitRequestContextOnMainThread(
   GetNetworkTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&CronetURLRequestContextAdapter::InitializeOnNetworkThread,
-                 base::Unretained(this), Passed(&context_config_),
+                 base::Unretained(this), base::Passed(&context_config_),
                  jcaller_ref));
 }