6888182: Readable and permitted to delete files could not be transferred through Clipboard and DnD

Reviewed-by: uta

src/windows/native/sun/windows/awt_Clipboard.cpp

@@ -294,7 +294,7 @@ Java_sun_awt_windows_WClipboard_publishClipboardData(JNIEnv *env,
     if (format == CF_HDROP) {
         DROPFILES *dropfiles = (DROPFILES *)dataout;
         dropfiles->pFiles = sizeof(DROPFILES);
-        dropfiles->fWide = FALSE; // good guess!
+        dropfiles->fWide = TRUE; // we publish only Unicode
         dataout += sizeof(DROPFILES);
     }
 

src/windows/native/sun/windows/awt_DnDDS.cpp

@@ -843,7 +843,7 @@ HRESULT __stdcall AwtDragSource::GetData(FORMATETC __RPC_FAR *pFormatEtc,
             dropfiles->pt.x = m_dropPoint.x;
             dropfiles->pt.y = m_dropPoint.y;
             dropfiles->fNC = m_fNC;
-            dropfiles->fWide = TRUE; // good guess!
+            dropfiles->fWide = TRUE; // we publish only Unicode
             dataout += sizeof(DROPFILES);
         }