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

chrome/browser/gtk/custom_button.h

Index: chrome/browser/gtk/custom_button.h
diff --git a/chrome/browser/gtk/custom_button.h b/chrome/browser/gtk/custom_button.h
index 4cdb9a5c2c5f45e9fa6238fd0cb405190bd6bda9..d92455ab07ed597081d977483c4139108ba1aaf0 100644
--- a/chrome/browser/gtk/custom_button.h
+++ b/chrome/browser/gtk/custom_button.h
@@ -40,6 +40,7 @@ class CustomDrawButtonBase : public NotificationObserver {
   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,
@@ -135,12 +136,11 @@ class CustomDrawButton : public NotificationObserver {
 
   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_;