More.

chrome/browser/ui/cocoa/browser_window_cocoa.mm

Index: chrome/browser/ui/cocoa/browser_window_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_cocoa.mm b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
index 2c63978f0eacceee23a3e2d62925a6410ba6bd53..84f9d2a0e7d9ec5177488536d5e9a161f5cc5395 100644
--- a/chrome/browser/ui/cocoa/browser_window_cocoa.mm
+++ b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
@@ -55,9 +55,9 @@ BrowserWindowCocoa::BrowserWindowCocoa(Browser* browser,
   // This pref applies to all windows, so all must watch for it.

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

Nit: Maybe use same comment as browser.cc

   registrar_.Add(this,
                  chrome::NOTIFICATION_BOOKMARK_BAR_VISIBILITY_PREF_CHANGED,
-                 NotificationService::AllSources());
+                 NotificationService::AllBrowserContextsAndSources());
   registrar_.Add(this, chrome::NOTIFICATION_SIDEBAR_CHANGED,
-                 NotificationService::AllSources());
+                 Source<SidebarManager>(SidebarManager::GetInstance()));
 }
 
 BrowserWindowCocoa::~BrowserWindowCocoa() {
@@ -608,7 +608,8 @@ void BrowserWindowCocoa::Observe(int type,
     // Only the key window gets a direct toggle from the menu.
     // Other windows hear about it from the notification.
     case chrome::NOTIFICATION_BOOKMARK_BAR_VISIBILITY_PREF_CHANGED:
-      [controller_ updateBookmarkBarVisibilityWithAnimation:YES];
+      if (browser_->profile()->IsSameProfile(Source<Profile>(source).ptr()))
+        [controller_ updateBookmarkBarVisibilityWithAnimation:YES];
       break;
     case chrome::NOTIFICATION_SIDEBAR_CHANGED:
       UpdateSidebarForContents(