[gtk] fill in gap pixels in desktop notification corners

chrome/browser/ui/gtk/notifications/balloon_view_gtk.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Draws the view for the balloons.
 
 #ifndef CHROME_BROWSER_UI_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_
 #pragma once
 
@@ skipping 62 matching lines @@
   int GetDesiredTotalWidth() const;
   int GetDesiredTotalHeight() const;
 
   // Where the balloon contents should be placed with respect to the top left
   // of the frame.
   gfx::Point GetContentsOffset() const;
 
   // Where the balloon contents should be in screen coordinates.
   gfx::Rect GetContentsRectangle() const;
 
+  CHROMEGTK_CALLBACK_1(BalloonViewImpl, gboolean, OnContentsExpose,
+                       GdkEventExpose*);
   CHROMEGTK_CALLBACK_0(BalloonViewImpl, void, OnCloseButton);
   CHROMEGTK_CALLBACK_1(BalloonViewImpl, gboolean, OnExpose, GdkEventExpose*);
   CHROMEGTK_CALLBACK_0(BalloonViewImpl, void, OnOptionsMenuButton);
   CHROMEGTK_CALLBACK_0(BalloonViewImpl, gboolean, OnDestroy);
 
   // Non-owned pointer to the balloon which owns this object.
   Balloon* balloon_;
 
   GtkThemeProvider* theme_provider_;
 
@@ skipping 28 matching lines @@
   scoped_ptr<NotificationOptionsMenuModel> options_menu_model_;
   // The button to open the options menu.
   scoped_ptr<CustomDrawButton> options_menu_button_;
 
   NotificationRegistrar notification_registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(BalloonViewImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_