parameters: (self)
docstring: Updates the member self._navigation_tabs to contain self._NUM_TABS
      elements, each of which is not crashed. The crashed tabs are intentionally
      leaked, since Telemetry doesn't have a good way of killing crashed tabs.
  
      It is also possible for a tab to be stalled in an infinite JavaScript loop.
      These tabs will be in self.browser.tabs, but not in self._navigation_tabs.
      There is no way to kill these tabs, so they are also leaked. This method is
      careful to only use tabs in self._navigation_tabs, or newly created tabs.
docstring_summary: Updates the member self._navigation_tabs to contain self._NUM_TABS
      elements, each of which is not crashed. The crashed tabs are intentionally
      leaked, since Telemetry doesn't have a good way of killing crashed tabs.
docstring_tokens: Updates the member self . _navigation_tabs to contain self . _NUM_TABS elements each of which is not crashed . The crashed tabs are intentionally leaked since Telemetry doesn t have a good way of killing crashed tabs .
function: def _RefreshNavigationTabs(self):
      """Updates the member self._navigation_tabs to contain self._NUM_TABS
      elements, each of which is not crashed. The crashed tabs are intentionally
      leaked, since Telemetry doesn't have a good way of killing crashed tabs.
  
      It is also possible for a tab to be stalled in an infinite JavaScript loop.
      These tabs will be in self.browser.tabs, but not in self._navigation_tabs.
      There is no way to kill these tabs, so they are also leaked. This method is
      careful to only use tabs in self._navigation_tabs, or newly created tabs.
      """
      live_tabs = [tab for tab in self._navigation_tabs if tab.IsAlive()]
      self._navigation_tabs = live_tabs
  
      while len(self._navigation_tabs) < self._NUM_TABS:
        self._navigation_tabs.append(self._browser.tabs.New())
function_tokens: def _RefreshNavigationTabs ( self ) : live_tabs = [ tab for tab in self . _navigation_tabs if tab . IsAlive ( ) ] self . _navigation_tabs = live_tabs while len ( self . _navigation_tabs ) < self . _NUM_TABS : self . _navigation_tabs . append ( self . _browser . tabs . New ( ) )