Remove all the ephemeral apps code.

extensions/browser/extension_util.cc

 // Copyright 2014 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 "extensions/browser/extension_util.h"
 
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/manifest_handlers/app_isolation_info.h"
 #include "extensions/common/manifest_handlers/incognito_info.h"
 
 namespace extensions {
 namespace util {
 
-bool IsExtensionInstalledPermanently(const std::string& extension_id,
-                                     content::BrowserContext* context) {
-  const Extension* extension = ExtensionRegistry::Get(context)->
-      GetExtensionById(extension_id, ExtensionRegistry::EVERYTHING);
-  return extension && !IsEphemeralApp(extension_id, context);
-}
-
-bool IsEphemeralApp(const std::string& extension_id,
-                    content::BrowserContext* context) {
-  return ExtensionPrefs::Get(context)->IsEphemeralApp(extension_id);
-}
-
 bool HasIsolatedStorage(const ExtensionInfo& info) {
   if (!info.extension_manifest.get())
     return false;
 
   std::string error;
   scoped_refptr<const Extension> extension(Extension::Create(
       info.extension_path,
       info.extension_location,
       *info.extension_manifest,
       Extension::NO_FLAGS,
@@ skipping 13 matching lines @@
 }
 
 bool CanBeIncognitoEnabled(const Extension* extension) {
   return IncognitoInfo::IsIncognitoAllowed(extension) &&
          (!extension->is_platform_app() ||
           extension->location() == Manifest::COMPONENT);
 }
 
 }  // namespace util
 }  // namespace extensions