HTTPVersion        92 Source/platform/network/HTTPParsers.h enum HTTPVersion { Unknown, HTTP_1_0, HTTP_1_1 };
HTTPVersion        47 Source/platform/network/ResourceResponse.h     enum HTTPVersion { Unknown, HTTP_0_9, HTTP_1_0, HTTP_1_1 };
HTTPVersion        53 public/platform/WebURLResponse.h     enum HTTPVersion { Unknown, HTTP_0_9, HTTP_1_0, HTTP_1_1 };