replaced wxStream::GetSize() with GetLength() (still keep the former but it will be deprecated) (second part of patch 1063498)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30428 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/include/wx/wxPython/pyistream.h

@@ -69,7 +69,7 @@ public:
 class wxPyCBInputStream : public wxInputStream {
 public:
     ~wxPyCBInputStream();
-    virtual size_t GetSize() const;
+    virtual wxFileOffset GetLength() const;
 
     // factory function
     static wxPyCBInputStream* create(PyObject *py, bool block=true);