Return a unique_ptr from BinaryValue::CreateWithCopiedBuffer.

chrome/browser/extensions/api/web_request/web_request_api_unittest.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 <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <queue>
@@ skipping 582 matching lines @@
   ASSERT_TRUE(form_data.get() != NULL);
   ASSERT_TRUE(form_data->GetType() == base::Value::TYPE_DICTIONARY);
   // Contents of raw.
   base::ListValue raw;
   extensions::subtle::AppendKeyValuePair(
       keys::kRequestBodyRawBytesKey,
       BinaryValue::CreateWithCopiedBuffer(kPlainBlock1, kPlainBlock1Length),
       &raw);
   extensions::subtle::AppendKeyValuePair(
       keys::kRequestBodyRawFileKey,
-      new base::StringValue(std::string()),
-      &raw);
+      base::MakeUnique<base::StringValue>(std::string()), &raw);
   extensions::subtle::AppendKeyValuePair(
       keys::kRequestBodyRawBytesKey,
       BinaryValue::CreateWithCopiedBuffer(kPlainBlock2, kPlainBlock2Length),
       &raw);
   // Summary.
   const base::Value* const kExpected[] = {
     form_data.get(),
     NULL,
     &raw,
     &raw,
@@ skipping 1700 matching lines @@
   EXPECT_TRUE(credentials_set);
   EXPECT_FALSE(auth3.Empty());
   EXPECT_EQ(username, auth1.username());
   EXPECT_EQ(password, auth1.password());
   EXPECT_EQ(1u, warning_set.size());
   EXPECT_TRUE(HasWarning(warning_set, "extid2"));
   EXPECT_EQ(3u, capturing_net_log.GetSize());
 }
 
 }  // namespace extensions