dash: Using initialization list.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

modules/stream_filter/dash/mpd/MPD.cpp

@@ -30,10 +30,9 @@
 using namespace dash::mpd;
 using namespace dash::exception;
 
-MPD::MPD    (std::map<std::string, std::string> attributes)
+MPD::MPD    (const AttributesMap& attributes) : attributes( attributes ),
+    programInfo( NULL )
 {
-    this->attributes    = attributes;
-    this->programInfo   = NULL;
 }
 
 MPD::~MPD   ()

modules/stream_filter/dash/mpd/MPD.h

@@ -44,7 +44,7 @@ namespace dash
             typedef std::map<std::string, std::string>      AttributesMap;
 
             public:
-                MPD         (std::map<std::string, std::string> attributes);
+                MPD         (const AttributesMap& attributes);
                 virtual ~MPD();
 
                 const std::string&             getType                 () const throw(dash::exception::AttributeNotPresentException);