Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/extensions/external_cache.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/chromeos/extensions/external_cache.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 52 matching lines @@
 }
 
 ExternalCache::~ExternalCache() {
 }
 
 void ExternalCache::Shutdown(const base::Closure& callback) {
   local_cache_.Shutdown(callback);
 }
 
 void ExternalCache::UpdateExtensionsList(
-    scoped_ptr<base::DictionaryValue> prefs) {
+    std::unique_ptr<base::DictionaryValue> prefs) {
   extensions_ = std::move(prefs);
 
   if (extensions_->empty()) {
     // If list of know extensions is empty, don't init cache on disk. It is
     // important shortcut for test to don't wait forever for cache dir
     // initialization that should happen outside of Chrome on real device.
     cached_extensions_->Clear();
     UpdateExtensionLoader();
     return;
   }
@@ skipping 280 matching lines @@
   OnPutExtension(id, file_path, file_ownership_passed);
   callback.Run(id, !file_ownership_passed);
 }
 
 std::string ExternalCache::Delegate::GetInstalledExtensionVersion(
     const std::string& id) {
   return std::string();
 }
 
 }  // namespace chromeos