[Pidgin] #3489: Fix crash due to gtkconv->{win, make_sound} dereference without gtkconv NULL-check

[Pidgin]

#3489: Fix crash due to gtkconv->{win,make_sound} dereference without gtkconv
NULL-check
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  Reporter:  nix_nix       |       Owner:  sadrul  
      Type:  patch         |      Status:  assigned
  Priority:  minor         |   Milestone:          
 Component:  pidgin (gtk)  |     Version:  2.2.1   
Resolution:                |    Keywords:          
   Pending:  0             |  
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Comment (by sadrul):

 Cool. Thanks.

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Ticket URL: <http://developer.pidgin.im/ticket/3489#comment:3>
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