[Pidgin] #8727: Small close buttons - ui improvement

[Pidgin]

#8727: Small close buttons - ui improvement
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     Reporter:  karvanitis  |        Type:  patch              
       Status:  new         |   Component:  pidgin (gtk)       
      Version:  2.5.5       |    Keywords:  close button widget
Launchpad_bug:              |  
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 The following patch implements a small Gtk compatible close button widget
 throughout the application where previously a Gtk label was attempted to
 be used for similar behaviour.

 This alleviates pidgin from having to handle the hit test as well as
 rendering such as the way the previous button was implemented. This
 behaviour is now handled by the native Gtk button widget.

 As a result, this also allows for a consistent look and feel throughout
 the pidgin application as well as with other Gtk apps. Simply speaking it
 looks and feels better.

 See attached screenshots.

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Ticket URL: <http://developer.pidgin.im/ticket/8727>
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