Remove SigninDelegateObserver.

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 51 matching lines @@
   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.
   if (profile_index == std::string::npos)
     return;
 
   model_->SetCurrentUser(cache.GetNameOfProfileAtIndex(profile_index),
                          cache.GetUserNameOfProfileAtIndex(profile_index));
 }
 
 void AppListViewDelegate::SetModel(app_list::AppListModel* model) {
-  if (signin_delegate_)
-    signin_delegate_->RemoveObserver(this);
   if (model) {
     model_ = model;
     apps_builder_.reset(new AppsModelBuilder(profile_,
                                              model->apps(),
                                              controller_.get()));
     apps_builder_->Build();
 
     search_controller_.reset(new app_list::SearchController(
         profile_, model->search_box(), model->results(), controller_.get()));
 
     signin_delegate_.reset(new ChromeSigninDelegate(profile_));
-    signin_delegate_->AddObserver(this);
 
 #if defined(USE_ASH)
     app_sync_ui_state_watcher_.reset(new AppSyncUIStateWatcher(profile_,
                                                                model));
 #endif
     OnProfileChanged();
   } else {
     model_ = NULL;
     apps_builder_.reset();
     search_controller_.reset();
@@ skipping 100 matching lines @@
 
 void AppListViewDelegate::OpenFeedback() {
   chrome::HostDesktopType desktop = chrome::GetHostDesktopTypeForNativeWindow(
       controller_->GetAppListWindow());
   Browser* browser = chrome::FindOrCreateTabbedBrowser(
       profile_, desktop);
   chrome::ShowFeedbackPage(browser, std::string(),
                            chrome::kAppLauncherCategoryTag);
 }
 
-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();
 }