Update the app launcher menu on profile name change.

chrome/browser/ui/app_list/app_list_view_delegate.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/app_list/app_list_view_delegate.h"
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 47 matching lines @@
     : controller_(controller),
       profile_(profile),
       model_(NULL) {
   DCHECK(profile_);
   registrar_.Add(this, chrome::NOTIFICATION_GOOGLE_SIGNIN_SUCCESSFUL,
                  content::Source<Profile>(profile_));
   registrar_.Add(this, chrome::NOTIFICATION_GOOGLE_SIGNIN_FAILED,
                  content::Source<Profile>(profile_));
   registrar_.Add(this, chrome::NOTIFICATION_GOOGLE_SIGNED_OUT,
                  content::Source<Profile>(profile_));
+  g_browser_process->profile_manager()->GetProfileInfoCache().AddObserver(this);
 }
 
 AppListViewDelegate::~AppListViewDelegate() {
   if (signin_delegate_)
     signin_delegate_->RemoveObserver(this);
+  g_browser_process->
+      profile_manager()->GetProfileInfoCache().RemoveObserver(this);
 }
 
 void AppListViewDelegate::OnProfileChanged() {
   model_->SetSignedIn(!signin_delegate_->NeedSignin());
   ProfileInfoCache& cache =
       g_browser_process->profile_manager()->GetProfileInfoCache();
   // Populate the current user details.
   size_t profile_index = cache.GetIndexOfProfileWithPath(profile_->GetPath());
   // The profile won't exist in the cache if the current app list profile is
   // being deleted.
@@ skipping 142 matching lines @@
 void AppListViewDelegate::OnSigninSuccess() {
   OnProfileChanged();
 }
 
 void AppListViewDelegate::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   OnProfileChanged();
 }
+
+void AppListViewDelegate::OnProfileNameChanged(
+    const base::FilePath& profile_path,
+    const base::string16& old_profile_name) {
+  if (profile_->GetPath() != profile_path)
+    return;
+
+  OnProfileChanged();
+}