+ you missed the place(s) in the OApplicationController implementation
  where pasteTable is called - with the current patch, the table name
  is not passed to pasteTable

+ the newly added parameter in pasteTable is of type "const ::rtl::OUString",
  it must be "const ::rtl::OUString&" - else passing it will create
  a full object copy.

- I'd prefer naming the variable/s DefaultTableName instead of TableName,
  since this name *should* be used when possible (instead of *must* be
  used).
  That's even more important to distinguish the various table names
  which are involved:
  aTableName in OHTMLReader::CreateTable is inited to some non-ambiguous
  name. It is overwritten in case the HTML contains a caption.
  ODatabaseExport::m_sTableName on the other hand is a "suggested" or
  "default" table name imposed from the outside.
  The relationship between those - which one should succeed in which
  case - is not clearly defined. That's not a real problem, but you should
  make the differences between them more obvious by better names.

- It might make sense to go a little step further:
  When you paste onto an existing table, you most probably want to
  append data, instead of creating a new table.
  This could, for instance, be done by default-selecting "Append data"
  if the given table name already exists.
  Care to implement this?