[Devtools] Allow User-Agent header override for Websockets

net/websockets/websocket_channel.cc

Index: net/websockets/websocket_channel.cc
diff --git a/net/websockets/websocket_channel.cc b/net/websockets/websocket_channel.cc
index 013b64a92ec8e53b80018ae767fb14474acf09f3..12567198177c6f960842c605ecb5e184cb8253fc 100644
--- a/net/websockets/websocket_channel.cc
+++ b/net/websockets/websocket_channel.cc
@@ -337,12 +337,14 @@ WebSocketChannel::~WebSocketChannel() {
 void WebSocketChannel::SendAddChannelRequest(
     const GURL& socket_url,
     const std::vector<std::string>& requested_subprotocols,
-    const url::Origin& origin) {
+    const url::Origin& origin,
+    const std::string& additional_headers) {
   // Delegate to the tested version.
   SendAddChannelRequestWithSuppliedCreator(
       socket_url,
       requested_subprotocols,
       origin,
+      additional_headers,
       base::Bind(&WebSocketStream::CreateAndConnectStream));
 }
 
@@ -545,9 +547,10 @@ void WebSocketChannel::SendAddChannelRequestForTesting(
     const GURL& socket_url,
     const std::vector<std::string>& requested_subprotocols,
     const url::Origin& origin,
+    const std::string& additional_headers,
     const WebSocketStreamCreator& creator) {
   SendAddChannelRequestWithSuppliedCreator(
-      socket_url, requested_subprotocols, origin, creator);
+      socket_url, requested_subprotocols, origin, additional_headers, creator);
 }
 
 void WebSocketChannel::SetClosingHandshakeTimeoutForTesting(
@@ -564,6 +567,7 @@ void WebSocketChannel::SendAddChannelRequestWithSuppliedCreator(
     const GURL& socket_url,
     const std::vector<std::string>& requested_subprotocols,
     const url::Origin& origin,
+    const std::string& additional_headers,
     const WebSocketStreamCreator& creator) {
   DCHECK_EQ(FRESHLY_CONSTRUCTED, state_);
   if (!socket_url.SchemeIsWSOrWSS()) {
@@ -577,8 +581,8 @@ void WebSocketChannel::SendAddChannelRequestWithSuppliedCreator(
   std::unique_ptr<WebSocketStream::ConnectDelegate> connect_delegate(
       new ConnectDelegate(this));
   stream_request_ = creator.Run(socket_url_, requested_subprotocols, origin,
-                                url_request_context_, BoundNetLog(),
-                                std::move(connect_delegate));
+                                additional_headers, url_request_context_,
+                                BoundNetLog(), std::move(connect_delegate));
   SetState(CONNECTING);
 }