SERVER-13874 Make mongo::Milliseconds et al. aliases for equivalent stdx::chrono types.

Also introduces operators for adding stdx::chrono::duration to Date_t,
subtracting two Date_ts to get Milliseconds, and remove the use of
reinterpret_cast from the implementation of BSON Timestamp type.

1 files changed, 1 insertions, 5 deletions

diff --git a/src/mongo/db/repl/heartbeat_response_action.cpp b/src/mongo/db/repl/heartbeat_response_action.cpp
index 4f26bc2953e..49ed33c4780 100644
--- a/src/mongo/db/repl/heartbeat_response_action.cpp
+++ b/src/mongo/db/repl/heartbeat_response_action.cpp
@@ -63,11 +63,7 @@ namespace repl {
         return result;
     }
 
-    HeartbeatResponseAction::HeartbeatResponseAction() :
-        _action(NoAction),
-        _primaryIndex(-1),
-        _nextHeartbeatStartDate(0) {
-    }
+    HeartbeatResponseAction::HeartbeatResponseAction() : _action(NoAction), _primaryIndex(-1) {}
 
     void HeartbeatResponseAction::setNextHeartbeatStartDate(Date_t when) {
         _nextHeartbeatStartDate = when;