More.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 0c456cddc5fbd8f3ad6164a9c02f89e62fec00ea..e1dcf0e2b10a881f0904a20e1043fc750de855fc 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -274,9 +274,10 @@ Browser::Browser(Type type, Profile* profile)
       Source<ThemeService>(ThemeServiceFactory::GetForProfile(profile_)));
   registrar_.Add(this, chrome::NOTIFICATION_TAB_CONTENT_SETTINGS_CHANGED,
                  NotificationService::AllSources());
+  // Need to stay in sync between our incognito and our normal profile.

[Peter Kasting, 2011/08/10 21:30:15]

Nit: "We listen to all notification sources because the bookmark bar state needs
to stay in sync between the incognito and normal profiles."?

   registrar_.Add(this,
                  chrome::NOTIFICATION_BOOKMARK_BAR_VISIBILITY_PREF_CHANGED,
-                 Source<Profile>(profile_));
+                 NotificationService::AllBrowserContextsAndSources());
 
   // Need to know when to alert the user of theme install delay.
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_READY_FOR_INSTALL,
@@ -3748,8 +3749,8 @@ void Browser::Observe(int type,
       break;
 
     case chrome::NOTIFICATION_BOOKMARK_BAR_VISIBILITY_PREF_CHANGED:
-      DCHECK_EQ(Source<Profile>(source).ptr(), profile_);
-      UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE);
+      if (profile_->IsSameProfile(Source<Profile>(source).ptr()))
+        UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE);
       break;
 
     default: