Convert Pass()→std::move() in //chrome

chrome/renderer/spellchecker/hunspell_engine.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/renderer/spellchecker/hunspell_engine.h"
 
 #include <stddef.h>
-
 #include <algorithm>
 #include <iterator>
+#include <utility>
 
 #include "base/files/memory_mapped_file.h"
 #include "base/time/time.h"
 #include "chrome/common/spellcheck_common.h"
 #include "chrome/common/spellcheck_messages.h"
 #include "content/public/renderer/render_thread.h"
 #include "third_party/hunspell/src/hunspell/hunspell.hxx"
 
 using content::RenderThread;
 
@@ skipping 25 matching lines @@
   // Wait till we check the first word before doing any initializing.
 }
 
 HunspellEngine::~HunspellEngine() {
 }
 
 void HunspellEngine::Init(base::File file) {
   initialized_ = true;
   hunspell_.reset();
   bdict_file_.reset();
-  file_ = file.Pass();
+  file_ = std::move(file);
   hunspell_enabled_ = file_.IsValid();
   // Delay the actual initialization of hunspell until it is needed.
 }
 
 void HunspellEngine::InitializeHunspell() {
   if (hunspell_.get())
     return;
 
   bdict_file_.reset(new base::MemoryMappedFile);
 
-  if (bdict_file_->Initialize(file_.Pass())) {
+  if (bdict_file_->Initialize(std::move(file_))) {
     hunspell_.reset(new Hunspell(bdict_file_->data(), bdict_file_->length()));
   } else {
     NOTREACHED() << "Could not mmap spellchecker dictionary.";
   }
 }
 
 bool HunspellEngine::CheckSpelling(const base::string16& word_to_check,
                                    int tag) {
   // Assume all words that cannot be checked are valid. Since Chrome can't
   // offer suggestions on them, either, there's no point in flagging them to
@@ skipping 53 matching lines @@
   // Don't initialize if hunspell is disabled.
   if (file_.IsValid())
     InitializeHunspell();
 
   return !initialized_;
 }
 
 bool HunspellEngine::IsEnabled() {
   return hunspell_enabled_;
 }