[gtk+] scrolled window: Drop unnecessary transient nodes

[Matthias Clasen <matthiasc src gnome org>]

commit f900bec4fa3cfab89e119d552d93a978628ed4f6
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Nov 6 22:58:08 2015 -0500

    scrolled window: Drop unnecessary transient nodes
    
    We already add the .frame style class to the context depending
    on the shadow property. No need to save the context and add it
    again all the time.

 gtk/gtkscrolledwindow.c |   13 -------------
 1 files changed, 0 insertions(+), 13 deletions(-)
---
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index c0f5508..622def1 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -2571,9 +2571,6 @@ gtk_scrolled_window_relative_allocation (GtkWidget     *widget,
       context = gtk_widget_get_style_context (widget);
       state = gtk_widget_get_state_flags (widget);
 
-      gtk_style_context_save (context);
-      gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
-
       gtk_style_context_get_border (context, state, &border);
       gtk_style_context_get_padding (context, state, &padding);
 
@@ -2581,8 +2578,6 @@ gtk_scrolled_window_relative_allocation (GtkWidget     *widget,
       allocation->y += padding.top + border.top;
       allocation->width = MAX (1, allocation->width - (padding.left + border.left + padding.right + 
border.right));
       allocation->height = MAX (1, allocation->height - (padding.top + border.top + padding.bottom + 
border.bottom));
-
-      gtk_style_context_restore (context);
     }
 
   if (priv->vscrollbar_visible && !priv->use_indicators)
@@ -2700,12 +2695,9 @@ gtk_scrolled_window_allocate_scrollbar (GtkScrolledWindow *scrolled_window,
   context = gtk_widget_get_style_context (widget);
   state = gtk_widget_get_state_flags (widget);
 
-  gtk_style_context_save (context);
-  gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
   gtk_widget_style_get (widget, "scrollbars-within-bevel", &scrollbars_within_bevel, NULL);
   gtk_style_context_get_padding (context, state, &padding);
   gtk_style_context_get_border (context, state, &border);
-  gtk_style_context_restore (context);
 
   if (scrollbar == priv->hscrollbar)
     {
@@ -3826,9 +3818,6 @@ gtk_scrolled_window_get_preferred_size (GtkWidget      *widget,
       context = gtk_widget_get_style_context (GTK_WIDGET (widget));
       state = gtk_widget_get_state_flags (GTK_WIDGET (widget));
 
-      gtk_style_context_save (context);
-      gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
-
       gtk_style_context_get_padding (context, state, &padding);
       gtk_style_context_get_border (context, state, &border);
 
@@ -3836,8 +3825,6 @@ gtk_scrolled_window_get_preferred_size (GtkWidget      *widget,
       minimum_req.height += padding.top + padding.bottom + border.top + border.bottom;
       natural_req.width += padding.left + padding.right + border.left + border.right;
       natural_req.height += padding.top + padding.bottom + border.top + border.bottom;
-
-      gtk_style_context_restore (context);
     }
 
   if (orientation == GTK_ORIENTATION_HORIZONTAL)