isOverlay          42 Source/platform/exported/WebScrollbarImpl.h     virtual bool isOverlay() const OVERRIDE;
isOverlay         219 Source/platform/exported/WebScrollbarThemeClientImpl.cpp     return m_scrollbar->isOverlay();
isOverlay          59 Source/web/WebPluginScrollbarImpl.h     virtual bool isOverlay() const OVERRIDE;
isOverlay          90 public/platform/WebScrollbar.h     virtual bool isOverlay() const = 0;