add cookie icon and use it for show cookies toolbar button

frontends/gtk/gui.c

@@ -270,7 +270,14 @@ static nserror nsgtk_add_named_icons_to_theme(void)
 		pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, 8, 32);
 	}
 	gtk_icon_theme_add_builtin_icon("local-history", 32, pixbuf);
-	#endif
+
+	res = nsgdk_pixbuf_new_from_resname("icons/show-cookie.png", &pixbuf);
+	if (res != NSERROR_OK) {
+		pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, 24, 24);
+	}
+	gtk_icon_theme_add_builtin_icon("show-cookie", 24, pixbuf);
+
+#endif
 	return NSERROR_OK;
 }
 

frontends/gtk/res/netsurf.gresource.xml

@@ -57,6 +57,7 @@
     <file>quirks.css</file>
     <file>netsurf.png</file>
     <file>default.ico</file>
+    <file>icons/show-cookie.png</file>
     <file>icons/local-history.png</file>
     <file>icons/arrow-l.png</file>
     <file>icons/content.png</file>

frontends/gtk/resources.c

@@ -96,6 +96,7 @@ static struct nsgtk_resource_s pixbuf_resource[] = {
 	RES_ENTRY("netsurf.xpm"),
 	RES_ENTRY("menu_cursor.png"),
 	RES_ENTRY("icons/local-history.png"),
+	RES_ENTRY("icons/show-cookie.png"),
 	RES_ENTRY("throbber/throbber0.png"),
 	RES_ENTRY("throbber/throbber1.png"),
 	RES_ENTRY("throbber/throbber2.png"),

frontends/gtk/toolbar_items.h

@@ -139,7 +139,7 @@ TOOLBAR_ITEM(LOCALHISTORY_BUTTON, localhistory, true, y, p, , NULL)
 TOOLBAR_ITEM(GLOBALHISTORY_BUTTON, globalhistory, true, y, p, gtkGlobalHistory, NULL)
 TOOLBAR_ITEM(ADDBOOKMARKS_BUTTON, addbookmarks, true, y, p, gtkAddBookMarks, NULL)
 TOOLBAR_ITEM(SHOWBOOKMARKS_BUTTON, showbookmarks, true, b, p, gtkShowBookMarks, "user-bookmarks")
-TOOLBAR_ITEM(SHOWCOOKIES_BUTTON, showcookies, true, y, p, gtkShowCookies, NULL)
+TOOLBAR_ITEM(SHOWCOOKIES_BUTTON, showcookies, true, b, p, gtkShowCookies, "show-cookie")
 TOOLBAR_ITEM(OPENLOCATION_BUTTON, openlocation, true, y, p, gtkOpenLocation, NULL)
 TOOLBAR_ITEM(NEXTTAB_BUTTON, nexttab, false, n, y, gtkNextTab, "media-skip-forward")
 TOOLBAR_ITEM(PREVTAB_BUTTON, prevtab, false, n, y, gtkPrevTab, "media-skip-backward")