GTK Themes: Fixes button state on pressed back/forward buttons and toolbar items.

chrome/browser/gtk/custom_button.h

 // Copyright (c) 2009 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_GTK_CUSTOM_BUTTON_H_
 #define CHROME_BROWSER_GTK_CUSTOM_BUTTON_H_
 
 #include <gtk/gtk.h>
 
 #include <string>
@@ skipping 22 matching lines @@
                        int highlight_id,
                        int depressed_id);
 
   ~CustomDrawButtonBase();
 
   GdkPixbuf* pixbufs(int i) const { return pixbufs_[i]; }
 
   gboolean OnExpose(GtkWidget* widget, GdkEventExpose* e);
 
   void set_paint_override(int state) { paint_override_ = state; }
+  int paint_override() const { return paint_override_; }
 
   // Provide NotificationObserver implementation.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
  private:
   // We store one GdkPixbuf* for each possible state of the button;
   // INSENSITIVE is the last available state;
   GdkPixbuf* pixbufs_[GTK_STATE_INSENSITIVE + 1];
@@ skipping 75 matching lines @@
   // Callback for custom button expose, used to draw the custom graphics.
   static gboolean OnCustomExpose(GtkWidget* widget,
                                  GdkEventExpose* e,
                                  CustomDrawButton* obj);
 
   // The actual button widget.
   OwnedWidgetGtk widget_;
 
   CustomDrawButtonBase button_base_;
 
+  GtkThemeProvider* theme_provider_;
+
   // The stock icon name.
   const char* gtk_stock_name_;
 
-  // Whether we have an expose signal handler we may need to remove.
-  bool has_expose_signal_handler_;
-
   // Used to listen for theme change notifications.
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(CustomDrawButton);
 };
 
 #endif  // CHROME_BROWSER_GTK_CUSTOM_BUTTON_H_