Add --draw-view-bounds-rects to draw bounds rects for all views.

ui/views/widget/widget.cc

Index: ui/views/widget/widget.cc
diff --git a/ui/views/widget/widget.cc b/ui/views/widget/widget.cc
index 38ade374c65cfbb03616880c7d61507b3a5ba1a5..083f808e86719a2636d715bc4d5f7960f98067c5 100644
--- a/ui/views/widget/widget.cc
+++ b/ui/views/widget/widget.cc
@@ -1153,7 +1153,7 @@ void Widget::OnNativeWidgetPaint(const ui::PaintContext& context) {
   // SetInitialBounds call.
   if (!native_widget_initialized_)
     return;
-  GetRootView()->Paint(context);
+  GetRootView()->PaintFromPaintRoot(context);
 }
 
 int Widget::GetNonClientComponent(const gfx::Point& point) {