install_observer_   50 chrome/browser/extensions/api/webstore/webstore_api.cc   install_observer_->Add(InstallTrackerFactory::GetForProfile(
install_observer_  106 chrome/browser/extensions/api/webstore/webstore_api.cc   install_observer_.reset();
install_observer_   97 chrome/browser/extensions/api/webstore/webstore_api.h       install_observer_;