Update SeleniumBase exceptions

seleniumbase/common/exceptions.py

@@ -1,26 +1,28 @@
 """ SeleniumBase Exceptions
-    NoSuchFileException => Used by self.assert_downloaded_file(...)
-    NotUsingChromeException => Used by Chrome-only methods if not using Chrome
-    OutOfScopeException => Used by BaseCase methods when setUp() is skipped
-    TimeLimitExceededException => Used by "--time-limit=SECONDS"
+    NoSuchFileException => Called when self.assert_downloaded_file(...) fails.
+    NotUsingChromeException => Used by Chrome-only methods if not using Chrome.
+    OutOfScopeException => Used by BaseCase methods when setUp() is skipped.
+    TextNotVisibleException => Called when expected text fails to appear.
+    TimeLimitExceededException => Called when exceeding "--time-limit=SECONDS".
 """
+from selenium.common.exceptions import WebDriverException
 
 
 class NoSuchFileException(Exception):
     pass
 
 
-class NotUsingChromeException(Exception):
+class NotUsingChromeException(WebDriverException):
     pass
 
 
 class OutOfScopeException(Exception):
     pass
 
 
-class TimeLimitExceededException(Exception):
+class TextNotVisibleException(WebDriverException):
     pass
 
 
-class TextNotVisibleException(Exception):
+class TimeLimitExceededException(Exception):
     pass