setAllowCustomScrollbarInMainFrame  704 Source/web/WebSettingsImpl.cpp     m_settings->setAllowCustomScrollbarInMainFrame(enabled);
setAllowCustomScrollbarInMainFrame   71 Source/web/WebSettingsImpl.h     virtual void setAllowCustomScrollbarInMainFrame(bool) OVERRIDE;
setAllowCustomScrollbarInMainFrame   80 public/web/WebSettings.h     virtual void setAllowCustomScrollbarInMainFrame(bool) = 0;