extern const char kWindowIdKey[];
extern const char kWindowTypeKey[];
extern const char kWindowTypeLongKey[];
+extern const char kZoomSettingsMode[];
+extern const char kZoomSettingsScope[];
// Value consts.
extern const char kCanOnlyMoveTabsWithinNormalWindowsError[];
extern const char kWindowTypeValueApp[];
// Error messages.
+extern const char kCannotZoomDisabledTabError[];
extern const char kNoCrashBrowserError[];
extern const char kNoCurrentWindowError[];
extern const char kNoLastFocusedWindowError[];
+extern const char kPerOriginOnlyInAutomaticError[];
extern const char kWindowNotFoundError[];
extern const char kTabIndexNotFoundError[];
extern const char kTabNotFoundError[];