Update from https://crrev.com/304121

net/test/embedded_test_server/http_request.h

Index: net/test/embedded_test_server/http_request.h
diff --git a/net/test/embedded_test_server/http_request.h b/net/test/embedded_test_server/http_request.h
index cb9144b14496e7b6e1eed563a8a4907a06cb7673..fcbf54cbdcff4d0d842cfd1a1b5b31e811b91339 100644
--- a/net/test/embedded_test_server/http_request.h
+++ b/net/test/embedded_test_server/http_request.h
@@ -36,6 +36,7 @@ struct HttpRequest {
   std::string relative_url;  // Starts with '/'. Example: "/test?query=foo"
   HttpMethod method;
   std::string method_string;
+  std::string all_headers;
   std::map<std::string, std::string> headers;
   std::string content;
   bool has_content;