Convert Pass()→std::move() for Mac build.

components/policy/core/common/policy_loader_mac.mm

 // Copyright (c) 2015 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 "components/policy/core/common/policy_loader_mac.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
@@ skipping 82 matching lines @@
       status.Add(POLICY_LOAD_STATUS_PARSE_ERROR);
     }
   }
 
   if (!policy_present)
     status.Add(POLICY_LOAD_STATUS_NO_POLICY);
 
   // Load policy for the registered components.
   LoadPolicyForDomain(POLICY_DOMAIN_EXTENSIONS, "extensions", bundle.get());
 
-  return bundle.Pass();
+  return bundle;
 }
 
 base::Time PolicyLoaderMac::LastModificationTime() {
   base::File::Info file_info;
   if (!base::GetFileInfo(managed_policy_path_, &file_info) ||
       file_info.is_directory) {
     return base::Time();
   }
 
   return file_info.last_modified;
@@ skipping 72 matching lines @@
     }
   }
 }
 
 void PolicyLoaderMac::OnFileUpdated(const base::FilePath& path, bool error) {
   if (!error)
     Reload(false);
 }
 
 }  // namespace policy