Rework IE virtual file system support to use new syntax. Remove now unused code for resolving links ourselves, we can let the backend resolves them itself.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/SOC2011_WEBVIEW@68507 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/webview.h

@@ -106,7 +106,6 @@ class WXDLLIMPEXP_WEB wxWebHandler
 public:
     virtual wxString GetName() const = 0;
     virtual wxFSFile* GetFile(const wxString &uri) = 0;
-    virtual wxString CombineURIs(const wxString &baseuri, const wxString &newuri) = 0;
 };
 
 extern WXDLLIMPEXP_DATA_WEB(const char) wxWebViewNameStr[];