Cannot draw metafile-based grayscale gradient into a polygon

OutputDevice::DrawGradient doesn't check to see if it's meant to be
drawing a grayscale gradient when it adds it into the OutputDevice
metafile. Now fixed.

Change-Id: I83cb5255c01901e33ca1f751e91e8a77292663e6

vcl/source/gdi/outdev4.cxx

@@ -853,6 +853,13 @@ void OutputDevice::DrawGradient( const PolyPolygon& rPolyPoly,
             return;
         }
 
+        Gradient aGradient( rGradient );
+
+        if ( mnDrawMode & ( DRAWMODE_GRAYGRADIENT | DRAWMODE_GHOSTEDGRADIENT ) )
+        {
+            SetGrayscaleColors( aGradient );
+        }
+
         if( mpMetaFile )
         {
             mpMetaFile->AddAction( new MetaCommentAction( "XGRAD_SEQ_BEGIN" ) );
@@ -866,13 +873,6 @@ void OutputDevice::DrawGradient( const PolyPolygon& rPolyPoly,
         if( !IsDeviceOutputNecessary() || ImplIsRecordLayout() )
             return;
 
-        Gradient aGradient( rGradient );
-
-        if ( mnDrawMode & ( DRAWMODE_GRAYGRADIENT | DRAWMODE_GHOSTEDGRADIENT ) )
-        {
-            SetGrayscaleColors( aGradient );
-        }
-
         ClipAndDrawGradientToBounds ( aGradient, rPolyPoly );
     }