Thread:Support/About Wikimedia:Wikipedia-android-strings-share via/ja/reply

On the right-hand side (on left-to-right interface; see this screenshot) there's a menu for page-specific actions; this menu contains the following options (in the following order):



Tapping on results in the following dialog:



As you can see, the message you asked about is used as a title for this dialog. The icons shown on the menu vary depending on what apps are installed on the device; my Nokia X has Firefox for Mobile and Terminal Emulator installed in addition to the standard preloaded apps, hence why those icons are visible on the above screenshot.