Extjs 4.2 Tooltip not wide enough to see the Content

I have Noticed while am Implementing Application Using  Extjs 4.2  MVC.
The Tooltip is not Resizing to the Size of the text in Google Crome.

I Noticed its Working fine in Mozilla 22 and IE10. but it is Not Working in Google Crome 28.

This is a Bug in Extjs 4.2.
For this You need to Override the Tooltip Css Class
there is an forum Issue for this tooltip Issue.

.x-tip {

  width: auto !important;

 } 

 .x-tip-body {

  width: auto !important;

 } 

 .x-tip-body span {

  width: auto !important;

 }