From 0299782caf8f769f8bd6a095d53281293a447c6d Mon Sep 17 00:00:00 2001
From: Chris H-C <chutten@mozilla.com>
Date: Thu, 6 Jul 2017 17:05:30 -0400
Subject: [PATCH] bug 1366294 - Part 11 - Fix OSX Build. r=gfritzsche

MozReview-Commit-ID: DSljXr8ZRhy
---
 ipc/chromium/src/base/histogram.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ipc/chromium/src/base/histogram.h b/ipc/chromium/src/base/histogram.h
index 758d78e7a634..cde80545c02a 100644
--- a/ipc/chromium/src/base/histogram.h
+++ b/ipc/chromium/src/base/histogram.h
@@ -455,7 +455,7 @@ class CustomHistogram : public Histogram {
   virtual ClassType histogram_type() const;
 
  protected:
-  CustomHistogram(const std::vector<Sample>& custom_ranges);
+  explicit CustomHistogram(const std::vector<Sample>& custom_ranges);
 
   // Initialize ranges_ mapping.
   void InitializedCustomBucketRange(const std::vector<Sample>& custom_ranges);