Book controls also shouldn't do anything for SetInitialBestSize

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27084 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/bookctrl.h

@@ -177,6 +177,8 @@ protected:
     // common part of all ctors
     void Init();
 
+    // Always rely on GetBestSize, which will look at all the pages
+    virtual void SetInitialBestSize(const wxSize& WXUNUSED(size)) { }
 
     // the array of all pages of this control
     wxArrayPages m_pages;