MainWorldId        66 Source/bindings/v8/DOMWrapperWorld.cpp     DEFINE_STATIC_REF(DOMWrapperWorld, cachedMainWorld, (DOMWrapperWorld::create(MainWorldId, mainWorldExtensionGroup)));
MainWorldId       117 Source/bindings/v8/DOMWrapperWorld.cpp     return MainWorldId < worldId  && worldId < IsolatedWorldIdLimit;
MainWorldId       110 Source/bindings/v8/DOMWrapperWorld.h     bool isMainWorld() const { return m_worldId == MainWorldId; }
MainWorldId       112 Source/bindings/v8/DOMWrapperWorld.h     bool isIsolatedWorld() const { return MainWorldId < m_worldId  && m_worldId < IsolatedWorldIdLimit; }