Add profile selector menu to app list.

chrome/browser/ui/app_list/apps_model_builder.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/apps_model_builder.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/prefs/pref_service.h"
@@ skipping 154 matching lines @@
     if (ShouldDisplayInAppLauncher(profile_, *app))
       apps->push_back(new ExtensionAppItem(profile_,
                                            (*app)->id(),
                                            controller_,
                                            "",
                                            gfx::ImageSkia(),
                                            (*app)->is_platform_app()));
   }
 }
 
+void AppsModelBuilder::SetProfile(Profile* profile) {
+  profile_ = profile;
+  model_->DeleteAll();
+  if (tracker_) {

[koz (OOO until 15th September), 2013/08/02 01:51:16]

nit: no curlies

[calamity, 2013/08/02 09:59:54]

Done.

+    tracker_->RemoveObserver(this);
+  }
+  Build();
+}
+
 void AppsModelBuilder::PopulateApps() {
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile_)->extension_service();
   if (!service)
     return;
 
   Apps apps;
   AddApps(service->extensions(), &apps);
   AddApps(service->disabled_extensions(), &apps);
   AddApps(service->terminated_extensions(), &apps);
@@ skipping 130 matching lines @@
 
   ExtensionAppItem* prev = target_index > 0 ? GetAppAt(target_index - 1) : NULL;
   ExtensionAppItem* next = target_index + 1 < model_->item_count() ?
       GetAppAt(target_index + 1) : NULL;
   GetAppAt(target_index)->Move(prev, next);
 }
 
 void AppsModelBuilder::ListItemsChanged(size_t start, size_t count) {
   NOTREACHED();
 }