Change more base::ListValue methods to use std::unique_ptr.

chrome/browser/extensions/extension_web_ui.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/extension_web_ui.h"
 
 #include <stddef.h>
 
 #include <set>
+#include <utility>
 #include <vector>
 
 #include "base/command_line.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/url_constants.h"
@@ skipping 79 matching lines @@
     if (!val->GetAsDictionary(&dict) || !dict->GetString(kEntry, &entry)) {
       NOTREACHED();
       continue;
     }
     if (entry == override) {
       dict->SetBoolean(kActive, true);
       return;  // All done!
     }
   }
 
-  std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
+  auto dict = base::MakeUnique<base::DictionaryValue>();
   dict->SetString(kEntry, override);
   dict->SetBoolean(kActive, true);
   // Add the entry to the front of the list.
-  list->Insert(0, dict.release());
+  list->Insert(0, std::move(dict));
 }
 
 // Validates that each entry in |list| contains a valid url and points to an
 // extension contained in |all_extensions| (and, if not, removes it).
 void ValidateOverridesList(const extensions::ExtensionSet* all_extensions,
                            base::ListValue* list) {
   base::ListValue migrated;
   for (const auto& val : *list) {
     base::DictionaryValue* dict = nullptr;
     std::string entry;
@@ skipping 431 matching lines @@
         extensions::ImageLoader::ImageRepresentation::ALWAYS_RESIZE,
         gfx::Size(pixel_size, pixel_size),
         resource_scale_factor));
   }
 
   // LoadImagesAsync actually can run callback synchronously. We want to force
   // async.
   extensions::ImageLoader::Get(profile)->LoadImagesAsync(
       extension, info_list, base::Bind(&RunFaviconCallbackAsync, callback));
 }