GTK: Clean up the gtk extension infobar implementation.

chrome/browser/ui/gtk/custom_button.h

Index: chrome/browser/ui/gtk/custom_button.h
diff --git a/chrome/browser/ui/gtk/custom_button.h b/chrome/browser/ui/gtk/custom_button.h
index 22b19369d6bb11a974d44dd7c88e53310fd63a48..43dcfe2881f97245abba63496d921e466578b3e7 100644
--- a/chrome/browser/ui/gtk/custom_button.h
+++ b/chrome/browser/ui/gtk/custom_button.h
@@ -158,6 +158,8 @@ class CustomDrawButton : public NotificationObserver {
 
   void Init();
 
+  void ForceBrowserTheme();

[Finnur, 2011/08/31 08:06:59]

nit: comment.

+
   // Flip the image horizontally. Not to be used for RTL/LTR reasons. (In RTL
   // mode, this will unflip the image.)
   void set_flipped(bool flipped) { button_base_.set_flipped(flipped); }
@@ -222,6 +224,10 @@ class CustomDrawButton : public NotificationObserver {
   // Our theme provider.
   GtkThemeService* theme_service_;
 
+  // Some buttons are always drawn in chrome style because they are part of
+  // HTML extensions.
+  bool forcing_browser_theme_;
+
   // Used to listen for theme change notifications.
   NotificationRegistrar registrar_;