Update from https://crrev.com/305340

net/base/network_delegate.h

Index: net/base/network_delegate.h
diff --git a/net/base/network_delegate.h b/net/base/network_delegate.h
index 03dee0b5f99040977bd73c4a52ed3b3aa920f19c..a169fc624947a6b73ea55980f7e1d74d366db5e2 100644
--- a/net/base/network_delegate.h
+++ b/net/base/network_delegate.h
@@ -38,7 +38,6 @@ class HttpResponseHeaders;
 class ProxyInfo;
 class ProxyServer;
 class ProxyService;
-class SocketStream;
 class URLRequest;
 
 class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
@@ -268,11 +267,6 @@ class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
       const GURL& url,
       const GURL& first_party_for_cookies) const;
 
-  // Called before a SocketStream tries to connect.
-  // See OnBeforeURLRequest for return value description. Returns OK by default.
-  virtual int OnBeforeSocketStreamConnect(
-      SocketStream* socket, const CompletionCallback& callback);
-
   // Called when the |referrer_url| for requesting |target_url| during handling
   // of the |request| is does not comply with the referrer policy (e.g. a
   // secure referrer for an insecure initial target).