Adds the new URLRequest::OnBeforeNetworkStart hook to the

content/browser/loader/stream_resource_handler.h

Index: content/browser/loader/stream_resource_handler.h
diff --git a/content/browser/loader/stream_resource_handler.h b/content/browser/loader/stream_resource_handler.h
index 14c576705d4cce01ed93a1768390cccbfe774296..daa9b504a2ac9bf8499239a3e1e383e6e9245425 100644
--- a/content/browser/loader/stream_resource_handler.h
+++ b/content/browser/loader/stream_resource_handler.h
@@ -49,6 +49,10 @@ class StreamResourceHandler : public StreamWriteObserver,
                            const GURL& url,
                            bool* defer) OVERRIDE;
 
+  virtual bool OnBeforeNetworkStart(int request_id,
+                                    const GURL& url,
+                                    bool* defer) OVERRIDE;
+
   // Create a new buffer to store received data.
   virtual bool OnWillRead(int request_id,
                           scoped_refptr<net::IOBuffer>* buf,