I've tracked down the issue, not sure how to solve it yet, desktop_file_to_binary treats filenames with a - in the format vendor-app.desktop so it is searching for browser.desktop in the chromium directory and failing. If "-" shouldn't be allowed in the desktop file filename there is a large number of broken files on this openSUSE Tumbleweed system, if they are allowed then desktop_file_to_binary needs fixing, i'll raise this on the xdg mailing list

find -iname "*-*"                                                                [Mon Nov  7 14:01:25 ACDT 2016|0]
./YaST2/samba-server.desktop
./YaST2/services-manager.desktop
./YaST2/iscsi-client.desktop
./YaST2/relocation-server.desktop
./YaST2/virtualization-config.desktop
./YaST2/add-on.desktop
./YaST2/yast-language.desktop
./YaST2/samba-client.desktop
./YaST2/auth-client.desktop
./YaST2/ntp-client.desktop
./YaST2/http-server.desktop
./kde4/active-documentviewer_chm.desktop
./kde4/active-documentviewer_comicbook.desktop
./kde4/active-documentviewer_djvu.desktop
./kde4/active-documentviewer_dvi.desktop
./kde4/active-documentviewer_epub.desktop
./kde4/active-documentviewer_fax.desktop
./kde4/active-documentviewer_fb.desktop
./kde4/active-documentviewer_ghostview.desktop
./kde4/active-documentviewer_ooo.desktop
./kde4/active-documentviewer_pdf.desktop
./kde4/active-documentviewer_plucker.desktop
./kde4/active-documentviewer_tiff.desktop
./kde4/active-documentviewer_txt.desktop
./kde4/active-documentviewer_xps.desktop
./textmaker-free.desktop
./planmaker-free.desktop
./presentations-free.desktop
./gtk-recordmydesktop.desktop
./yast2-metapackage-handler-ymu.desktop
./yast2-metapackage-handler.desktop
./claudia-launcher.desktop
./projectM-jack.desktop
./git-gui.desktop
./simple-scan.desktop
./vivaldi-stable.desktop
./lxqt-config-powermanagement.desktop
./lxqt-config-session.desktop
./lxqt-hibernate.desktop
./lxqt-leave.desktop
./lxqt-lockscreen.desktop
./lxqt-logout.desktop
./lxqt-reboot.desktop
./lxqt-shutdown.desktop
./lxqt-suspend.desktop
./lxqt-config-notificationd.desktop
./lxqt-about.desktop
./lxqt-config-appearance.desktop
./lxqt-config-brightness.desktop
./lxqt-config-file-associations.desktop
./lxqt-config-input.desktop
./lxqt-config-locale.desktop
./lxqt-config-monitor.desktop
./lxqt-config.desktop
./lxqt-config-globalkeyshortcuts.desktop
./pcmanfm-qt-desktop-pref.desktop
./pcmanfm-qt.desktop
./chromium-bsu.desktop
./gnome-mimeapps.list
./pavucontrol-qt.desktop
./notification-daemon.desktop
./gnome-calculator.desktop
./geoclue-where-am-i.desktop
./gpk-prefs.desktop
./bluetooth-sendto.desktop
./uget-gtk.desktop
./gcr-prompter.desktop
./mount-archive.desktop
./nautilus-autorun-software.desktop
./nautilus-classic.desktop
./gcm-calibrate.desktop
./gcm-import.desktop
./gcm-picker.desktop
./gcr-viewer.desktop
./lximage-qt-screenshot.desktop
./lximage-qt.desktop
./ibus-setup.desktop
./xscreensaver-properties.desktop
./exo-file-manager.desktop
./exo-mail-reader.desktop
./exo-preferred-applications.desktop
./exo-terminal-emulator.desktop
./exo-web-browser.desktop
./itweb-settings.desktop
./xfce4-power-manager-settings.desktop
./xfce4-about.desktop
./xfce4-screenshooter.desktop
./claws-mail.desktop
./system-config-printer.desktop
./gnome-background-panel.desktop
./gnome-bluetooth-panel.desktop
./gnome-control-center.desktop
./gnome-datetime-panel.desktop
./gnome-display-panel.desktop
./gnome-info-panel.desktop
./gnome-keyboard-panel.desktop
./gnome-mouse-panel.desktop
./gnome-network-panel.desktop
./gnome-notifications-panel.desktop
./gnome-power-panel.desktop
./gnome-printers-panel.desktop
./gnome-privacy-panel.desktop
./gnome-region-panel.desktop
./gnome-search-panel.desktop
./gnome-sharing-panel.desktop
./gnome-sound-panel.desktop
./gnome-universal-access-panel.desktop
./gnome-user-accounts-panel.desktop
./gnome-wacom-panel.desktop
./gnome-online-accounts-panel.desktop
./gnome-color-panel.desktop
./gnome-shell-extension-prefs.desktop
./evolution-calendar.desktop
./chromium-browser.desktop
./org.kde.krusader.root-mode.desktop
./yast2-packager.desktop
./audio-assistant.desktop
./gtk3-icon-browser.desktop
./gtk3-demo.desktop
./gtk3-widget-factory.desktop
./gkbd-keyboard-display.desktop
./nm-connection-editor.desktop
./nm-applet.desktop
./vivaldi-snapshot.desktop