Moved IS_EPHEMERAL flag to extension prefs

chrome/browser/apps/ephemeral_app_launcher.cc

 // Copyright 2013 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/apps/ephemeral_app_launcher.h"
 
 #include "chrome/browser/extensions/extension_install_prompt.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 186 matching lines @@
   return true;
 }
 
 bool EphemeralAppLauncher::CheckInstallValid(
     const base::DictionaryValue& manifest,
     std::string* error) {
   extension_ = Extension::Create(
       base::FilePath(),
       extensions::Manifest::INTERNAL,
       manifest,
-      Extension::REQUIRE_KEY |
-          Extension::FROM_WEBSTORE |
-          Extension::IS_EPHEMERAL,
+      Extension::REQUIRE_KEY | Extension::FROM_WEBSTORE,
       id(),
       error);
   if (!extension_.get()) {
     *error = kInvalidManifestError;
     return false;
   }
 
   if (!extension_->is_app()) {
     *error = kExtensionTypeError;
     return false;
@@ skipping 55 matching lines @@
     LaunchApp(extension);
     WebstoreStandaloneInstaller::CompleteInstall(std::string());
   } else {
     WebstoreStandaloneInstaller::CompleteInstall(kLaunchAbortedError);
   }
 }
 
 void EphemeralAppLauncher::ExtensionEnableFlowAborted(bool user_initiated) {
   WebstoreStandaloneInstaller::CompleteInstall(kLaunchAbortedError);
 }