From c9badd52c8dd06412973038548e632b516ca5981 Mon Sep 17 00:00:00 2001
From: "henrik.lundin" <henrik.lundin@webrtc.org>
Date: Tue, 6 Dec 2016 03:58:58 -0800
Subject: [PATCH] Add comment to metrics.h

BUG=None
NOTRY=True
TBR=rkaplow@chromium.org,asapersson@webrtc.org

Review-Url: https://codereview.webrtc.org/2557693002
Cr-Commit-Position: refs/heads/master@{#15439}
---
 webrtc/system_wrappers/include/metrics.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/webrtc/system_wrappers/include/metrics.h b/webrtc/system_wrappers/include/metrics.h
index 25a51807de..e84e8ecd4d 100644
--- a/webrtc/system_wrappers/include/metrics.h
+++ b/webrtc/system_wrappers/include/metrics.h
@@ -58,6 +58,9 @@
 // };
 //
 // RTC_HISTOGRAM_ENUMERATION("WebRTC.Types", kTypeX, kBoundary);
+//
+// NOTE: It is recommended to do the Chromium review for modifications to
+// histograms.xml before new metrics are committed to WebRTC.
 
 
 // Macros for adding samples to a named histogram.