Convert Pass()→std::move() for CrOS extension code.

chrome/browser/extensions/component_loader.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/extensions/component_loader.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/files/file_util.h"
@@ skipping 91 matching lines @@
       file_util::LoadManifest(root_directory, manifest_filename, &error));
   if (!manifest) {
     LOG(ERROR) << "Can't load "
                << root_directory.Append(manifest_filename).AsUTF8Unsafe()
                << ": " << error;
     return nullptr;
   }
   bool localized = extension_l10n_util::LocalizeExtension(
       root_directory, manifest.get(), &error);
   CHECK(localized) << error;
-  return manifest.Pass();
+  return manifest;
 }
 
 bool IsNormalSession() {
   return !base::CommandLine::ForCurrentProcess()->HasSwitch(
              chromeos::switches::kGuestSession) &&
          user_manager::UserManager::IsInitialized() &&
          user_manager::UserManager::Get()->IsUserLoggedIn();
 }
 #endif  // defined(OS_CHROMEOS)
 
@@ skipping 644 matching lines @@
       manifest.release(),
       root_directory,
       false);
   CHECK_EQ(extension_id, actual_extension_id);
   if (!done_cb.is_null())
     done_cb.Run();
 }
 #endif
 
 }  // namespace extensions