ExtensionCacheNullImpl   22 chrome/browser/extensions/updater/extension_cache.cc   static ExtensionCacheNullImpl* GetInstance() {
ExtensionCacheNullImpl   23 chrome/browser/extensions/updater/extension_cache.cc     return Singleton<ExtensionCacheNullImpl>::get();
ExtensionCacheNullImpl   52 chrome/browser/extensions/updater/extension_cache.cc   friend struct DefaultSingletonTraits<ExtensionCacheNullImpl>;
ExtensionCacheNullImpl   72 chrome/browser/extensions/updater/extension_cache.cc     return ExtensionCacheNullImpl::GetInstance();