Fix compilation of kde/kde4

...broken by 4b51374a "fdo#46808,
Adapt ui::dialogs::FilePicker UNO service to new style."

Change-Id: I5fa8130507222b8588c15bdb9efd86daba7c0f38

vcl/unx/kde/UnxFilePicker.cxx

@@ -87,10 +87,11 @@ namespace
 //////////////////////////////////////////////////////////////////////////
 
 UnxFilePicker::UnxFilePicker( const uno::Reference<uno::XComponentContext>& )
-    : cppu::WeakComponentImplHelper3<
+    : cppu::WeakComponentImplHelper4<
 // TODO   XFilePreview,
           XFilePicker2,
           XFilePicker3,
+          XFilePickerControlAccess,
           lang::XServiceInfo>( m_rbHelperMtx ),
           m_nFilePickerPid( -1 ),
           m_nFilePickerWrite( -1 ),

vcl/unx/kde4/KDE4FilePicker.cxx

@@ -105,9 +105,10 @@ QString toQString(const rtl::OUString& s)
 //////////////////////////////////////////////////////////////////////////
 
 KDE4FilePicker::KDE4FilePicker( const uno::Reference<uno::XComponentContext>& )
-    : cppu::WeakComponentImplHelper3<
+    : cppu::WeakComponentImplHelper4<
           XFilePicker2,
           XFilePicker3,
+          XFilePickerControlAccess,
           lang::XServiceInfo>( _helperMutex ),
           _resMgr( ResMgr::CreateResMgr("fps_office") )
 {