media-keys: always round the render coordinates for media icons

This ensures the pixbuf is always rendered as crisp as possible.

See GNOME/gnome-settings-daemon@a03c072

Signed-off-by: Zhang Xianwei <zhang.xianwei8@zte.com.cn>

Author: zhangxianwei8

plugins/media-keys/msd-media-keys-window.c

@@ -489,8 +489,8 @@ draw_action_volume (MsdMediaKeysWindow *window,
         volume_box_width = icon_box_width;
         volume_box_height = round (window_height * 0.05);
 
-        icon_box_x0 = (window_width - icon_box_width) / 2;
-        icon_box_y0 = (window_height - icon_box_height) / 2;
+        icon_box_x0 = round ((window_width - icon_box_width) / 2);
+        icon_box_y0 = round ((window_height - icon_box_height) / 2);
         volume_box_x0 = round (icon_box_x0);
         volume_box_y0 = round (window_height - icon_box_y0 / 2 - volume_box_height);
 
@@ -625,8 +625,8 @@ draw_action_custom (MsdMediaKeysWindow *window,
         label_box_width = round (window_width);
         label_box_height = round (window_height * 0.175);
 
-        icon_box_x0 = (window_width - icon_box_width) / 2;
-        icon_box_y0 = (window_height - icon_box_height) / 2;
+        icon_box_x0 = round ((window_width - icon_box_width) / 2);
+        icon_box_y0 = round ((window_height - icon_box_height) / 2);
         label_box_y0 = round (window_height - label_box_height / 2);
 
 #if 0