fdo#63749: #118845# corrected missing ressource for gallery theme htmlexpo

(cherry picked from commit fee688fd)

Conflicts:
	svx/inc/svx/gallery.hxx

Change-Id: I263bc8bcd4232d8e9b4a971fd611b451840618a3
Reviewed-on: https://gerrit.libreoffice.org/3507Reviewed-by: Michael Meeks <michael.meeks@suse.com>
Tested-by: Michael Meeks <michael.meeks@suse.com>

svx/inc/galtheme.hrc

@@ -39,7 +39,7 @@
 #define RID_GALLERYSTR_THEME_MAPS           (RID_GALLERYSTR_THEME_START + 12)
 #define RID_GALLERYSTR_THEME_PEOPLE                     (RID_GALLERYSTR_THEME_START + 13)
 #define RID_GALLERYSTR_THEME_SURFACES                   (RID_GALLERYSTR_THEME_START + 14)
-// free
+#define RID_GALLERYSTR_THEME_HTMLBUTTONS                (RID_GALLERYSTR_THEME_START + 15)
 #define RID_GALLERYSTR_THEME_POWERPOINT                 (RID_GALLERYSTR_THEME_START + 16)
 #define RID_GALLERYSTR_THEME_SOUNDS         (RID_GALLERYSTR_THEME_START + 18)
 #define RID_GALLERYSTR_THEME_SYMBOLS                    (RID_GALLERYSTR_THEME_START + 19)

svx/inc/svx/gallery.hxx

@@ -41,6 +41,7 @@
 #define GALLERY_THEME_3D                1
 #define GALLERY_THEME_BULLETS       3
 #define GALLERY_THEME_HOMEPAGE      10
+#define GALLERY_THEME_HTMLBUTTONS   15
 #define GALLERY_THEME_POWERPOINT    16
 #define GALLERY_THEME_SOUNDS        18
 #define GALLERY_THEME_USERSOUNDS    21

svx/source/gallery2/galtheme.src

@@ -119,6 +119,14 @@ String RID_GALLERYSTR_THEME_SURFACES
 
 // -----------------------------------------------------------------------------
 
+String RID_GALLERYSTR_THEME_HTMLBUTTONS
+{
+    // !!! Don't translate, please !!!
+    Text = "private://gallery/hidden/HtmlExportButtons";
+};
+
+// -----------------------------------------------------------------------------
+
 String RID_GALLERYSTR_THEME_POWERPOINT
 {
     // !!! Don't translate, please !!!