Fix compilation of MS-Windows FilePicker

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

Change-Id: Ie57b08ea16c9f8e350177c050a6d9ff952fd7332

fpicker/source/win32/filepicker/FilePicker.cxx

@@ -67,12 +67,9 @@ namespace
 //-----------------------------------------------------------------------------------------
 
 CFilePicker::CFilePicker( const uno::Reference<lang::XMultiServiceFactory>& xServiceMgr) :
-    cppu::WeakComponentImplHelper3<
-        XFilePicker2,
-        XFilePicker3,
-        lang::XServiceInfo>(m_rbHelperMtx),
-        m_xServiceMgr(xServiceMgr),
-        m_aAsyncEventNotifier(rBHelper)
+    CFilePicker_Base(m_rbHelperMtx),
+    m_xServiceMgr(xServiceMgr),
+    m_aAsyncEventNotifier(rBHelper)
 {
     HINSTANCE hInstance = GetModuleHandle(FILE_PICKER_DLL_NAME);
     OSL_POSTCOND( hInstance, "The name of the service dll must have changed" );

fpicker/source/win32/filepicker/FilePicker.hxx

@@ -52,14 +52,16 @@ protected:
     osl::Mutex  m_rbHelperMtx;
 };
 
+typedef ::cppu::WeakComponentImplHelper5 <
+            ::com::sun::star::ui::dialogs::XFilePicker2,
+            ::com::sun::star::ui::dialogs::XFilePicker3,
+            ::com::sun::star::ui::dialogs::XFilePickerControlAccess,
+            ::com::sun::star::ui::dialogs::XFilePreview,
+            ::com::sun::star::lang::XServiceInfo >   CFilePicker_Base;
+
 class CFilePicker :
     public CFilePickerDummy,
-    public cppu::WeakComponentImplHelper5<
-        ::com::sun::star::ui::dialogs::XFilePicker2,
-        ::com::sun::star::ui::dialogs::XFilePicker3,
-        ::com::sun::star::ui::dialogs::XFilePickerControlAccess,
-        ::com::sun::star::ui::dialogs::XFilePreview,
-        ::com::sun::star::lang::XServiceInfo >
+    public CFilePicker_Base
 {
 public: