Bug 1322257. Always position child views in nsContainerFrame::ReflowChild. r=dholbert

If we move the frame then we need to move any descendant views, not just if the frame itself has a view.

layout/generic/nsContainerFrame.cpp

@@ -1021,6 +1021,7 @@ nsContainerFrame::ReflowChild(nsIFrame*                aKidFrame,
 
   if (0 == (aFlags & NS_FRAME_NO_MOVE_VIEW)) {
     PositionFrameView(aKidFrame);
+    PositionChildViews(aKidFrame);
   }
 
   // Reflow the child frame
@@ -1064,6 +1065,7 @@ nsContainerFrame::ReflowChild(nsIFrame*                aKidFrame,
 
   if (0 == (aFlags & NS_FRAME_NO_MOVE_VIEW)) {
     PositionFrameView(aKidFrame);
+    PositionChildViews(aKidFrame);
   }
 
   // Reflow the child frame