Auto scaling mode of the vncviewer make improved.
In this mode scaling works against vncviewer window size
(instead scale factor). 
Added ScaledDIBSectionBuffer::setScaleWindowSize() and
DesktopWindow::printScale() methods.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2234 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/win/vncviewer/CConn.cxx b/win/vncviewer/CConn.cxx
index 0d95180..2341f76 100644
--- a/win/vncviewer/CConn.cxx
+++ b/win/vncviewer/CConn.cxx
@@ -157,6 +157,7 @@
     window->setMenuKey(options.menuKey);
     window->setDisableWinKeys(options.disableWinKeys);
     window->setShowToolbar(options.showToolbar);
+    window->printScale();
     if (options.autoScaling) {
       window->setAutoScaling(true);
     } else {