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

ipc/ipc_channel_proxy.cc

Index: ipc/ipc_channel_proxy.cc
diff --git a/ipc/ipc_channel_proxy.cc b/ipc/ipc_channel_proxy.cc
index 84f87fc873365477af257b9dc5b64f2045417fca..7c4eb7d8959913fd5cccf69173a3a78780fc653d 100644
--- a/ipc/ipc_channel_proxy.cc
+++ b/ipc/ipc_channel_proxy.cc
@@ -419,8 +419,8 @@ void ChannelProxy::Init(scoped_ptr<ChannelFactory> factory,
     context_->CreateChannel(factory.Pass());
   } else {
     context_->ipc_task_runner()->PostTask(
-        FROM_HERE, base::Bind(&Context::CreateChannel,
-                              context_.get(), Passed(factory.Pass())));
+        FROM_HERE, base::Bind(&Context::CreateChannel, context_.get(),
+                              base::Passed(&factory)));
   }
 
   // complete initialization on the background thread