[core] Pass a value to response callback, not a reference

2 files changed, 2 insertions, 2 deletions

diff --git a/include/mbgl/storage/file_source.hpp b/include/mbgl/storage/file_source.hpp
index a53bf31c2c..0bb5c0fcaf 100644
--- a/include/mbgl/storage/file_source.hpp
+++ b/include/mbgl/storage/file_source.hpp
@@ -20,7 +20,7 @@ protected:
 public:
     virtual ~FileSource() = default;
 
-    using Callback = std::function<void(const Response &)>;
+    using Callback = std::function<void (Response)>;
 
     // These can be called from any thread. The callback will be invoked in the loop.
     // You can only cancel a request from the same thread it was created in.
diff --git a/include/mbgl/storage/request.hpp b/include/mbgl/storage/request.hpp
index 1fb15c5a92..0f178af9bb 100644
--- a/include/mbgl/storage/request.hpp
+++ b/include/mbgl/storage/request.hpp
@@ -20,7 +20,7 @@ class Response;
 
 class Request : private util::noncopyable {
 public:
-    using Callback = std::function<void(const Response &)>;
+    using Callback = std::function<void (Response)>;
     Request(const Resource &resource, uv_loop_t *loop, Callback callback);
 
 public: