Adding compressed bytes to DRP pingback

components/data_reduction_proxy/proto/pageload_metrics.proto

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 import "client_config.proto";
 
@@ skipping 37 matching lines @@
   optional Duration time_to_first_contentful_paint = 6;
   // Time to first image paint.
   optional Duration time_to_first_image_paint = 7;
   // Time to first byte.
   optional Duration time_to_first_byte = 8;
   // Time to onLoad event.
   optional Duration page_load_time = 9;
 
   // The sum of original-content-length values, over resources that were not
   // loaded from browser cache.
-  optional int32 original_page_size_bytes = 10;
+  optional int32 original_page_size_kb = 10;

[tbansal1, 2017/01/19 22:01:18]

nitpicking: s/kb/kB/
https://en.wikipedia.org/wiki/Kilobyte says Kilobyte has symbol "kB"
https://en.wikipedia.org/wiki/Kilobit says kilobit has symbol "kb".

[RyanSturm, 2017/01/19 22:11:34]

Acknowledged. Contextually, this should be understandable, and protos are lower
case.

[tbansal1, 2017/01/19 22:24:09]

OK, I will leave up to you. There have been cases in the past where this has
caused confusion in the past (http://shortn/_wNyN3swrgZ,
http://shortn/_1faZ2biMVU). 

[RyanSturm, 2017/01/25 22:14:45]

obsolete

   // The sum of (compressed) content-length, over resources that were not loaded
   // from browser cache.
-  optional int32 compressed_page_size_bytes = 11;
+  optional int32 compressed_page_size_kb = 11;
 
   // The effective connection type at the start of the navigation.
   optional EffectiveConnectionType effective_connection_type = 12;
 
   // The amount of time the parser was blocked by loading script.
   optional Duration parse_blocked_on_script_load_duration = 13;
 
   // Time until parsing finished.
   optional Duration parse_stop = 14;
 
   // Time to first meaningful paint. This measure is unstable and will change
   // over time.
   optional Duration experimental_time_to_first_meaningful_paint = 15;
 }