Convert "return local_var.Pass();" to "return local_var;".

mojo/services/files/c/tests/test_utils.cc

 // Copyright 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 "files/c/tests/test_utils.h"
 
 #include "files/c/lib/template_util.h"
 #include "files/interfaces/file.mojom.h"
 #include "files/interfaces/types.mojom.h"
 #include "mojo/public/cpp/environment/logging.h"
@@ skipping 22 matching lines @@
   MOJO_CHECK(path);
   mojo::files::DirectoryPtr& dir = *root;
 
   mojo::files::FilePtr file;
   mojo::files::Error error = mojo::files::Error::INTERNAL;
   dir->OpenFile(path, mojo::GetProxy(&file), open_flags, Capture(&error));
   MOJO_CHECK(dir.WaitForIncomingResponse());
   if (error != mojo::files::Error::OK)
     return nullptr;
 
-  return file.Pass();
+  return file;
 }
 
 void CreateTestFileAt(mojo::files::DirectoryPtr* root,
                       const char* path,
                       size_t size) {
   mojo::files::FilePtr file = OpenFileAt(
       root, path, mojo::files::kOpenFlagWrite | mojo::files::kOpenFlagCreate |
                       mojo::files::kOpenFlagExclusive);
   MOJO_CHECK(file);
 
@@ skipping 40 matching lines @@
              Capture(&error, &bytes_read));
   MOJO_CHECK(file.WaitForIncomingResponse());
   if (!bytes_read.size())
     return std::string();
   return std::string(reinterpret_cast<const char*>(&bytes_read[0]),
                      bytes_read.size());
 }
 
 }  // namespace test
 }  // namespace mojio