Fixes bug where a Page Action icon was not being properly displayed upon page...

chrome/browser/cocoa/location_bar_view_mac.h

Index: chrome/browser/cocoa/location_bar_view_mac.h
===================================================================
--- chrome/browser/cocoa/location_bar_view_mac.h	(revision 35229)
+++ chrome/browser/cocoa/location_bar_view_mac.h	(working copy)
@@ -33,7 +33,8 @@
 
 class LocationBarViewMac : public AutocompleteEditController,
                            public LocationBar,
-                           public LocationBarTesting {
+                           public LocationBarTesting,
+                           public NotificationObserver {
  public:
   LocationBarViewMac(AutocompleteTextField* field,
                      const BubblePositioner* bubble_positioner,
@@ -96,6 +97,11 @@
                             const bool show_search_hint,
                             NSImage* image);
 
+  // Overridden from NotificationObserver.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
   // Used to display a clickable icon in the location bar.
   class LocationBarImageView {
    public:
@@ -325,6 +331,9 @@
   // The transition type to use for the navigation.
   PageTransition::Type transition_;
 
+  // Used to register for notifications received by NotificationObserver.
+  NotificationRegistrar registrar_;
+
   DISALLOW_COPY_AND_ASSIGN(LocationBarViewMac);
 };