Merge pull request #11447 from markdroth/default_max_header_size

Change default for SETTINGS_MAX_HEADER_LIST_SIZE from 16KiB to 8KiB.

src/core/ext/transport/chttp2/transport/chttp2_transport.c

@@ -52,7 +52,7 @@
 #define DEFAULT_CONNECTION_WINDOW_TARGET (1024 * 1024)
 #define MAX_WINDOW 0x7fffffffu
 #define MAX_WRITE_BUFFER_SIZE (64 * 1024 * 1024)
-#define DEFAULT_MAX_HEADER_LIST_SIZE (16 * 1024)
+#define DEFAULT_MAX_HEADER_LIST_SIZE (8 * 1024)
 
 #define DEFAULT_CLIENT_KEEPALIVE_TIME_MS INT_MAX
 #define DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS 20000 /* 20 seconds */