Stop refcounting URLRequestContext.

net/socket_stream/socket_stream_job.h

Index: net/socket_stream/socket_stream_job.h
diff --git a/net/socket_stream/socket_stream_job.h b/net/socket_stream/socket_stream_job.h
index 9e6c8f5f9a489ad73ceb3868719cd1b33e11cfc3..00510b2ae03ce8809ae97542de8212ab1eb14d65 100644
--- a/net/socket_stream/socket_stream_job.h
+++ b/net/socket_stream/socket_stream_job.h
@@ -50,10 +50,10 @@ class NET_EXPORT SocketStreamJob
   virtual SocketStream::UserData* GetUserData(const void* key) const;
   virtual void SetUserData(const void* key, SocketStream::UserData* data);
 
-  URLRequestContext* context() const {
+  const URLRequestContext* context() const {
     return socket_->context();
   }
-  void set_context(URLRequestContext* context) {
+  void set_context(const URLRequestContext* context) {
     socket_->set_context(context);
   }