Corrected context call. Implemented custom onLongClick listener. Works, but perhaps a better solution would be to add a custom option to the already-built-in text-select CAB.
Images for menu delete option.
Menu and related strings for deleting text.
Reworking (but currently commented out) CAB for deleting selected text. NOTE: accessing selected text from a webview is currently a super PITA from everything I've read. Seems an easier way to handle this will be to figure out a way to append menu items to the default text select CAB (which in this case is special since it's the PRIVATE WebTextView…)