Embedded obj: resize to avoid rendering issue

Force resize, before sidebar wasn't rendered correctly.

Change-Id: I0aeec50751a165bf4ab1aeefeda079ff97feb990
Reviewed-on: https://gerrit.libreoffice.org/40065Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Szymon Kłos <szymon.klos@collabora.com>

embeddedobj/source/general/docholder.cxx

@@ -868,7 +868,6 @@ uno::Reference< frame::XFrame > const & DocumentHolder::GetDocFrame()
 
         // TODO/LATER: get it for the real aspect
         awt::Size aSize;
-        GetExtent( embed::Aspects::MSOLE_CONTENT, &aSize );
         LoadDocToFrame(false);
 
         if ( xOwnLM.is() )
@@ -877,6 +876,9 @@ uno::Reference< frame::XFrame > const & DocumentHolder::GetDocFrame()
             xOwnLM->lock();
         }
 
+        GetExtent(embed::Aspects::MSOLE_CONTENT, &aSize);
+        SetExtent(embed::Aspects::MSOLE_CONTENT, aSize);
+
         if ( xOwnLM.is() )
             xOwnLM->unlock();
     }