Update copyright, choose a better sort order for our enum

src/core/ext/transport/chttp2/transport/http2_settings.c

 /*
- * Copyright 2015, Google Inc.
+ * Copyright 2017, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

src/core/ext/transport/chttp2/transport/http2_settings.h

 /*
- * Copyright 2015, Google Inc.
+ * Copyright 2017, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -40,13 +40,13 @@
 #include <stdint.h>
 
 typedef enum {
-  GRPC_CHTTP2_SETTINGS_ENABLE_PUSH = 1,                     /* wire id 2 */
-  GRPC_CHTTP2_SETTINGS_GRPC_ALLOW_TRUE_BINARY_METADATA = 6, /* wire id 65027 */
   GRPC_CHTTP2_SETTINGS_HEADER_TABLE_SIZE = 0,               /* wire id 1 */
-  GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE = 3,             /* wire id 4 */
+  GRPC_CHTTP2_SETTINGS_ENABLE_PUSH = 1,                     /* wire id 2 */
   GRPC_CHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS = 2,          /* wire id 3 */
+  GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE = 3,             /* wire id 4 */
   GRPC_CHTTP2_SETTINGS_MAX_FRAME_SIZE = 4,                  /* wire id 5 */
   GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE = 5,            /* wire id 6 */
+  GRPC_CHTTP2_SETTINGS_GRPC_ALLOW_TRUE_BINARY_METADATA = 6, /* wire id 65027 */
 } grpc_chttp2_setting_id;
 
 #define GRPC_CHTTP2_NUM_SETTINGS 7

tools/codegen/core/gen_settings_ids.py

 #!/usr/bin/env python2.7
 
-# Copyright 2015, Google Inc.
+# Copyright 2017, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -106,10 +106,9 @@ decorated_settings = [DecoratedSetting(hash(setting.id), name, setting)
                       for name, setting in _SETTINGS.iteritems()]
 
 print >>H, 'typedef enum {'
-for name in sorted(_SETTINGS.keys()):
-  setting = _SETTINGS[name]
+for decorated_setting in sorted(decorated_settings):
   print >>H, '  GRPC_CHTTP2_SETTINGS_%s = %d, /* wire id %d */' % (
-      name, hash(setting.id), setting.id)
+      decorated_setting.name, decorated_setting.enum, decorated_setting.setting.id)
 print >>H, '} grpc_chttp2_setting_id;'
 print >>H
 print >>H, '#define GRPC_CHTTP2_NUM_SETTINGS %d' % (max(x.enum for x in decorated_settings) + 1)