[Mac] AppController needs to update its "last profile" pointer when the active profile is deleted

chrome/browser/app_controller_mac.h

Index: chrome/browser/app_controller_mac.h
diff --git a/chrome/browser/app_controller_mac.h b/chrome/browser/app_controller_mac.h
index 5928e1706c2a4a0a78331ed7ff882b45f51d91a7..46d8a051f3328c97b1c4c7ab344bd5879ebd9835 100644
--- a/chrome/browser/app_controller_mac.h
+++ b/chrome/browser/app_controller_mac.h
@@ -16,6 +16,7 @@
 #include "base/prefs/pref_change_registrar.h"
 #include "ui/base/work_area_watcher_observer.h"
 
+class AppControllerProfileObserver;
 class BookmarkMenuBridge;
 class CommandUpdater;
 class GURL;
@@ -39,6 +40,10 @@ class WorkAreaWatcherObserver;
   // build the user-data specific main menu items.
   Profile* lastProfile_;
 
+  // The ProfileObserver observes the ProfileInfoCache and gets notified
+  // when a profile has been deleted.
+  scoped_ptr<AppControllerProfileObserver> profileInfoCacheObserver_;
+
   // Management of the bookmark menu which spans across all windows
   // (and Browser*s).
   scoped_ptr<BookmarkMenuBridge> bookmarkMenuBridge_;
@@ -101,7 +106,7 @@ class WorkAreaWatcherObserver;
 - (IBAction)showPreferences:(id)sender;
 
 // Redirect in the menu item from the expected target of "File's
-// Owner" (NSAppliation) for a Branded About Box
+// Owner" (NSApplication) for a Branded About Box
 - (IBAction)orderFrontStandardAboutPanel:(id)sender;
 
 // Toggles the "Confirm to Quit" preference.