Fixing copying processes for wrapper components.

Change-Id: Iae3f30d5754c3efac01d66f9d0d567874e44602d

avmedia/source/vlc/wrapper/Instance.cxx

@@ -38,9 +38,7 @@ namespace VLC
 
     Instance::Instance( const Instance& other )
     {
-        libvlc_release( mInstance );
-        mInstance = other.mInstance;
-        libvlc_retain( mInstance );
+        operator=(other);
     }
 
     const Instance& Instance::operator=( const Instance& other )

avmedia/source/vlc/wrapper/Media.cxx

@@ -51,9 +51,8 @@ Media::Media( const rtl::OUString& url, Instance& instance )
 }
 
 Media::Media( const Media& other )
-    : mMedia( other.mMedia )
 {
-    libvlc_media_retain( mMedia );
+    operator=(other);
 }
 
 const Media& Media::operator=( const Media& other )

avmedia/source/vlc/wrapper/Player.cxx

@@ -87,9 +87,8 @@ namespace VLC
     }
 
     Player::Player( const Player& other )
-        : mPlayer( other.mPlayer )
     {
-        libvlc_media_player_retain( mPlayer );
+        operator=( other );
     }
 
     const Player& Player::operator=( const Player& other )