From 8208dfaba34db13cb638edc5137ed532d272c16f Mon Sep 17 00:00:00 2001
From: Leith Bade <leith@mapbox.com>
Date: Wed, 3 Dec 2014 20:56:41 +1100
Subject: [PATCH] Use std::lock_guard

---
 src/map/map.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/map/map.cpp b/src/map/map.cpp
index 686a9100b..5cbe04a72 100644
--- a/src/map/map.cpp
+++ b/src/map/map.cpp
@@ -627,9 +627,9 @@ void Map::setAppliedClasses(const std::vector<std::string> &classes) {
         }
     }
     else {
-        appliedClassesMutex.lock();
+        std::lock_guard
+        d::lock_guard<std::mutex> lock(appliedClassesMutex);
         appliedClasses = std::make_unique<std::vector<std::string>>(classes);
-        appliedClassesMutex.unlock();
     }
 }