[Devtools] Allow User-Agent header override for Websockets

net/websockets/websocket_channel_test.cc

Index: net/websockets/websocket_channel_test.cc
diff --git a/net/websockets/websocket_channel_test.cc b/net/websockets/websocket_channel_test.cc
index 040a903f9ab836817e42f7b291ac50c64c1fdb8b..f059d281ad4e534484362a8828d44432aa33a7a7 100644
--- a/net/websockets/websocket_channel_test.cc
+++ b/net/websockets/websocket_channel_test.cc
@@ -699,6 +699,7 @@ struct ArgumentCopyingWebSocketStreamCreator {
       const GURL& socket_url,
       const std::vector<std::string>& requested_subprotocols,
       const url::Origin& origin,
+      const std::string& additional_headers,
       URLRequestContext* url_request_context,
       const BoundNetLog& net_log,
       std::unique_ptr<WebSocketStream::ConnectDelegate> connect_delegate) {
@@ -747,6 +748,7 @@ class WebSocketChannelTest : public ::testing::Test {
         connect_data_.socket_url,
         connect_data_.requested_subprotocols,
         connect_data_.origin,
+        "",
         base::Bind(&ArgumentCopyingWebSocketStreamCreator::Create,
                    base::Unretained(&connect_data_.creator)));
   }