GTK: Step 1 of tab strip refresh.

chrome/browser/ui/gtk/tabs/dragged_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.
 
 #ifndef CHROME_BROWSER_UI_GTK_TABS_DRAGGED_VIEW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_TABS_DRAGGED_VIEW_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 #include <vector>
@@ skipping 111 matching lines @@
   // Sets full transparency for the container window.  This is used if
   // compositing is available for the screen.
   void SetContainerTransparency();
 
   // Sets the shape mask for the container window to emulate a transparent
   // container window.  This is used if compositing is not available for the
   // screen.
   // |surface| represents the tab only (not the render view).
   void SetContainerShapeMask();
 
-  void PaintTab(int index, cairo_t* cr, int widget_width);
+  void PaintTab(int index, GtkWidget* widget, cairo_t* cr, int widget_width);
 
   // expose-event handler that notifies when the tab needs to be redrawn.
   CHROMEGTK_CALLBACK_1(DraggedViewGtk, gboolean, OnExpose, GdkEventExpose*);
 
   // The window that contains the dragged tab or tab contents.
   GtkWidget* container_;
 
   // The fixed widget that we use to contain the tab renderer so that the
   // tab widget won't be resized.
   GtkWidget* fixed_;
@@ skipping 40 matching lines @@
   base::Closure animation_callback_;
 
   // The start and end bounds of the animation sequence.
   gfx::Rect animation_start_bounds_;
   gfx::Rect animation_end_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(DraggedViewGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_TABS_DRAGGED_VIEW_GTK_H_