[eog] EogScrollView: Visually merge the overlaid rotate buttons

[Felix Riemann <friemann src gnome org>]

commit b1dd9bf9d41e6c184f6b0e1c26155314d9798282
Author: Felix Riemann <friemann gnome org>
Date:   Wed Jan 28 19:39:13 2015 +0100

    EogScrollView: Visually merge the overlaid rotate buttons
    
    Incorporating UI feedback from Allan Day.

 src/eog-scroll-view.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/eog-scroll-view.c b/src/eog-scroll-view.c
index d936b32..3f3aeb4 100644
--- a/src/eog-scroll-view.c
+++ b/src/eog-scroll-view.c
@@ -2964,6 +2964,8 @@ eog_scroll_view_init (EogScrollView *view)
 
        /* group rotate buttons into a box */
        GtkWidget* bottomBox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+       gtk_style_context_add_class (gtk_widget_get_style_context (bottomBox),
+                                    GTK_STYLE_CLASS_LINKED);
 
        button = gtk_button_new_from_icon_name ("object-rotate-left-symbolic",
                                                GTK_ICON_SIZE_BUTTON);