Return a unique_ptr from BinaryValue::CreateWithCopiedBuffer.

chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api_chromeos_unittest.cc

 // Copyright 2014 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/api/easy_unlock_private/easy_unlock_private_api.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 
@@ skipping 83 matching lines @@
   }
 
  private:
   ~TestableGetPermitAccessFunction() override {}
 
   DISALLOW_COPY_AND_ASSIGN(TestableGetPermitAccessFunction);
 };
 
 // Converts a string to a base::BinaryValue value whose buffer contains the
 // string data without the trailing '\0'.
-base::BinaryValue* StringToBinaryValue(const std::string& value) {
+std::unique_ptr<base::BinaryValue> StringToBinaryValue(
+    const std::string& value) {
   return base::BinaryValue::CreateWithCopiedBuffer(value.data(),
                                                    value.length());
 }
 
 // Copies |private_key_source| and |public_key_source| to |private_key_target|
 // and |public_key_target|. It is used as a callback for
 // |EasyUnlockClient::GenerateEcP256KeyPair| to save the values returned by the
 // method.
 void CopyKeyPair(std::string* private_key_target,
                  std::string* public_key_target,
@@ skipping 539 matching lines @@
 
   scoped_refptr<TestableGetPermitAccessFunction> function(
       new TestableGetPermitAccessFunction());
   std::unique_ptr<base::Value> value(
       extensions::api_test_utils::RunFunctionAndReturnSingleResult(
           function.get(), "[]", profile()));
   EXPECT_FALSE(value);
 }
 
 }  // namespace