Found 9 lint warnings: storage/src/android/list_result_android.h:2: #ifndef header guard has wrong style, please use: FIREBASE_STORAGE_SRC_ANDROID_LIST_RESULT_ANDROID_H_ [build/header_guard] [5] storage/src/android/list_result_android.h:46: #endif line should be "#endif // FIREBASE_STORAGE_SRC_ANDROID_LIST_RESULT_ANDROID_H_" [build/header_guard] [5] storage/src/common/list_result.cc:117: For a static/global string constant, use a C style string instead: "const char ListResult::s_empty_page_token_[]". [runtime/string] [4] storage/src/desktop/list_result_desktop.h:2: #ifndef header guard has wrong style, please use: FIREBASE_STORAGE_SRC_DESKTOP_LIST_RESULT_DESKTOP_H_ [build/header_guard] [5] storage/src/desktop/list_result_desktop.h:65: #endif line should be "#endif // FIREBASE_STORAGE_SRC_DESKTOP_LIST_RESULT_DESKTOP_H_" [build/header_guard] [5] storage/src/include/firebase/storage/list_result.h:2: #ifndef header guard has wrong style, please use: FIREBASE_STORAGE_SRC_INCLUDE_FIREBASE_STORAGE_LIST_RESULT_H_ [build/header_guard] [5] storage/src/include/firebase/storage/list_result.h:119: #endif line should be "#endif // FIREBASE_STORAGE_SRC_INCLUDE_FIREBASE_STORAGE_LIST_RESULT_H_" [build/header_guard] [5] storage/src/ios/list_result_ios.h:2: #ifndef header guard has wrong style, please use: FIREBASE_STORAGE_SRC_IOS_LIST_RESULT_IOS_H_ [build/header_guard] [5] storage/src/ios/list_result_ios.h:46: #endif line should be "#endif // FIREBASE_STORAGE_SRC_IOS_LIST_RESULT_IOS_H_" [build/header_guard] [5]