Refactor the various ways to control what users can do to extensions.

chrome/browser/ui/webui/ntp/app_launcher_handler.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/webui/ntp/app_launcher_handler.h"
 
 #include <string>
 #include <vector>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/i18n/rtl.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/string_number_conversions.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/app_notification_manager.h"
 #include "chrome/browser/extensions/apps_promo.h"
 #include "chrome/browser/extensions/crx_installer.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_sorting.h"
+#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 #include "chrome/browser/ui/webui/web_ui_util.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 70 matching lines @@
   // The Extension class 'helpfully' wraps bidi control characters that
   // impede our ability to determine directionality.
   string16 name = UTF8ToUTF16(extension->name());
   base::i18n::UnadjustStringForLocaleDirection(&name);
   NewTabUI::SetURLTitleAndDirection(value, name, extension->GetFullLaunchURL());
 
   bool enabled = service->IsExtensionEnabled(extension->id()) &&
       !service->GetTerminatedExtension(extension->id());
   extension->GetBasicInfo(enabled, value);
 
+  value->SetBoolean("mayDisable", ExtensionSystem::Get(
+      service->profile())->management_policy()->UserMayModifySettings(
+      extension, NULL));
+
   bool icon_big_exists = true;
   // Instead of setting grayscale here, we do it in apps_page.js.
   GURL icon_big =
       ExtensionIconSource::GetIconURL(extension,
                                       ExtensionIconSet::EXTENSION_ICON_LARGE,
                                       ExtensionIconSet::MATCH_BIGGER,
                                       false, &icon_big_exists);
   value->SetString("icon_big", icon_big.spec());
   value->SetBoolean("icon_big_exists", icon_big_exists);
   bool icon_small_exists = true;
@@ skipping 471 matching lines @@
 
 void AppLauncherHandler::HandleUninstallApp(const ListValue* args) {
   std::string extension_id;
   CHECK(args->GetString(0, &extension_id));
 
   const Extension* extension = extension_service_->GetExtensionById(
       extension_id, true);
   if (!extension)
     return;
 
-  if (!Extension::UserMayDisable(extension->location())) {
+  if (!ExtensionSystem::Get(extension_service_->profile())->
+        management_policy()->UserMayModifySettings(extension, NULL)) {
     LOG(ERROR) << "Attempt to uninstall an extension that is non-usermanagable "
                << "was made. Extension id : " << extension->id();
     return;
   }
   if (!extension_id_prompting_.empty())
     return;  // Only one prompt at a time.
 
   extension_id_prompting_ = extension_id;
 
   bool dont_confirm = false;
@@ skipping 366 matching lines @@
 
 void AppLauncherHandler::UninstallDefaultApps() {
   AppsPromo* apps_promo = extension_service_->apps_promo();
   const extensions::ExtensionIdSet& app_ids = apps_promo->old_default_apps();
   for (extensions::ExtensionIdSet::const_iterator iter = app_ids.begin();
        iter != app_ids.end(); ++iter) {
     if (extension_service_->GetExtensionById(*iter, true))
       extension_service_->UninstallExtension(*iter, false, NULL);
   }
 }