[Qt] Use the new Frame-By-Frame icon.

modules/gui/qt4/components/controller.cpp

@@ -254,7 +254,7 @@ QWidget *AbstractController::createWidget( buttonType_e button, int* i_size,
         QToolButton *frameButton = new QToolButton;
         setupButton( frameButton );
         CONNECT_MAP_SET( frameButton, FRAME_ACTION );
-        BUTTON_SET_BAR( frameButton, "", qtr( "Frame by frame" ) );
+        BUTTON_SET_BAR( frameButton, frame, qtr( "Frame by frame" ) );
         ENABLE_ON_INPUT( frameButton );
         widget = frameButton;
         }

modules/gui/qt4/vlc.qrc

@@ -67,6 +67,7 @@
   <file alias="atob">pixmaps/toolbar/atob.png</file>
   <file alias="atob_noa">pixmaps/toolbar/atob_noa.png</file>
   <file alias="atob_nob">pixmaps/toolbar/atob_nob.png</file>
+  <file alias="frame">pixmaps/toolbar/frame-by-frame.png</file>
   <file alias="next">pixmaps/next_16px.png</file>
   <file alias="next_b">pixmaps/next.png</file>
   <file alias="down_arrow">pixmaps/arrow_down_dark.png</file>