Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/common/value_builder_unittest.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 "extensions/common/value_builder.h"
+
+#include <memory>
 #include <utility>
 
-#include "base/memory/scoped_ptr.h"
 #include "base/values.h"
-#include "extensions/common/value_builder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ValueBuilderTest = testing::Test;
 
 namespace extensions {
 
 TEST(ValueBuilderTest, Basic) {
   ListBuilder permission_list;
   permission_list.Append("tabs").Append("history");
 
-  scoped_ptr<base::DictionaryValue> settings(new base::DictionaryValue);
+  std::unique_ptr<base::DictionaryValue> settings(new base::DictionaryValue);
 
   ASSERT_FALSE(settings->GetList("permissions", nullptr));
   settings =
       DictionaryBuilder().Set("permissions", permission_list.Build()).Build();
   base::ListValue* list_value;
   ASSERT_TRUE(settings->GetList("permissions", &list_value));
 
   ASSERT_EQ(2U, list_value->GetSize());
   std::string permission;
   ASSERT_TRUE(list_value->GetString(0, &permission));
   ASSERT_EQ(permission, "tabs");
   ASSERT_TRUE(list_value->GetString(1, &permission));
   ASSERT_EQ(permission, "history");
 }
 
 }  // namespace extensions