[Pidgin] #521: Make tray icon widget available to plugins

[Pidgin]

#521: Make tray icon widget available to plugins
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  Reporter:  jwendell      |       Owner:  charkins
      Type:  patch         |      Status:  assigned
  Priority:  minor         |   Milestone:          
 Component:  pidgin (gtk)  |     Version:  2.0     
Resolution:                |    Keywords:          
   Pending:  0             |  
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Comment (by rlaager):

 Also, this needs some checks to make sure the pointers aren't NULL before
 dereferencing them to set them.

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Ticket URL: <http://developer.pidgin.im/ticket/521#comment:2>
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