updateViewportDescription 3077 Source/core/dom/Document.cpp     updateViewportDescription();
updateViewportDescription  735 Source/core/dom/Document.h     void updateViewportDescription();
updateViewportDescription  399 Source/core/frame/DOMWindow.cpp     m_document->updateViewportDescription();
updateViewportDescription  468 Source/core/page/Page.cpp             mainFrame()->document()->updateViewportDescription();