Handle non-HTTP/1.1 requests more gracefully in net::HttpServer.

net/server/http_server.h

Index: net/server/http_server.h
diff --git a/net/server/http_server.h b/net/server/http_server.h
index a0062d6821bc30f8129e590e31ef03bf0563aa84..a59333b2d8e4544a2d490d41110090146e77696d 100644
--- a/net/server/http_server.h
+++ b/net/server/http_server.h
@@ -98,7 +98,9 @@ class HttpServer {
 
   // Expects the raw data to be stored in recv_data_. If parsing is successful,
   // will remove the data parsed from recv_data_, leaving only the unused
-  // recv data.
+  // recv data. If all data has been consumed successfully, but the headers are
+  // not fully parsed, *pos will be set to zero. Returns false if an error is
+  // encountered while parsing, true otherwise.
   bool ParseHeaders(const char* data,
                     size_t data_len,
                     HttpServerRequestInfo* info,