Fix crash in UnpackedInstaller::LoadFromCommandLine

chrome/browser/extensions/unpacked_installer.cc

 // Copyright (c) 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/extensions/unpacked_installer.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/strings/string_util.h"
@@ skipping 133 matching lines @@
 
   if (!IsLoadingUnpackedAllowed()) {
     ReportExtensionLoadError(kUnpackedExtensionsBlacklistedError);
     return false;
   }
 
   std::string error;
   install_checker_.set_extension(
       file_util::LoadExtension(
           extension_path_, Manifest::COMMAND_LINE, GetFlags(), &error).get());
-  PermissionsUpdater(service_weak_->profile())
-      .InitializePermissions(extension());
 
   if (!extension() ||
       !extension_l10n_util::ValidateExtensionLocales(
           extension_path_, extension()->manifest()->value(), &error)) {
     ReportExtensionLoadError(error);
     return false;
   }
 
+  PermissionsUpdater(
+      service_weak_->profile(), PermissionsUpdater::INIT_FLAG_TRANSIENT)
+      .InitializePermissions(extension());
   ShowInstallPrompt();
 
   *extension_id = extension()->id();
   return true;
 }
 
 void UnpackedInstaller::ShowInstallPrompt() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!service_weak_.get())
     return;
@@ skipping 139 matching lines @@
 
   PermissionsUpdater perms_updater(service_weak_->profile());
   perms_updater.InitializePermissions(extension());
   perms_updater.GrantActivePermissions(extension());
 
   service_weak_->OnExtensionInstalled(
       extension(), syncer::StringOrdinal(), kInstallFlagInstallImmediately);
 }
 
 }  // namespace extensions