/usr/include/KF5/KPIMTextEdit/kpimtextedit/ is in libkf5pimtextedit-dev 16.04.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/KPIMTextEdit/kpimtextedit/abstracttexttospeechinterface.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/config-kpimtextedit.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/editorutil.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/emoticontexteditaction.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/htmlhighlighter.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/inserthtmldialog.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/insertimagedialog.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/insertimagewidget.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/inserttabledialog.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/inserttablewidget.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/kpimtextedit_export.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/plaintexteditfindbar.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/plaintexteditor.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/plaintexteditorwidget.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/plaintextsyntaxspellcheckinghighlighter.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtextcomposer.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtextcomposeractions.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtextcomposercontroler.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtextcomposeremailquotehighlighter.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtextcomposerimages.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtextcomposerwidget.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtexteditor.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtexteditorwidget.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/richtextexternalcomposer.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/selectspecialchardialog.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/slidecontainer.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/syntaxhighlighterbase.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/tableactionmenu.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/tablecellformatdialog.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/tableformatdialog.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/texteditfindbarbase.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/texteditorcompleter.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/textgotolinewidget.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/texttospeech.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/texttospeechactions.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/texttospeechinterface.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/texttospeechwidget.h
/usr/include/KF5/KPIMTextEdit/kpimtextedit/textutils.h