Re-write many calls to WrapUnique() with MakeUnique()

base/trace_event/trace_event_argument_unittest.cc

 // Copyright (c) 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 "base/trace_event/trace_event_argument.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 113 matching lines @@
 
   std::string json;
   value->AppendAsTraceFormat(&json);
   EXPECT_EQ(
       "{\"outer_dict\":{\"inner_list\":[false,1,\"in_list\",{\"bool\":true,"
       "\"double\":42.0,\"int\":42,\"string\":\"ab\"}]}}",
       json);
 }
 
 TEST(TraceEventArgumentTest, PassTracedValue) {
-  auto dict_value = WrapUnique(new TracedValue());
+  auto dict_value = MakeUnique<TracedValue>();
   dict_value->SetInteger("a", 1);
 
-  auto nested_dict_value = WrapUnique(new TracedValue());
+  auto nested_dict_value = MakeUnique<TracedValue>();
   nested_dict_value->SetInteger("b", 2);
   nested_dict_value->BeginArray("c");
   nested_dict_value->AppendString("foo");
   nested_dict_value->EndArray();
 
   dict_value->SetValue("e", *nested_dict_value);
 
   // Check the merged result.
   std::string json;
   dict_value->AppendAsTraceFormat(&json);
   EXPECT_EQ("{\"a\":1,\"e\":{\"b\":2,\"c\":[\"foo\"]}}", json);
 
   // Check that the passed nestd dict was left unouthced.
   json = "";
   nested_dict_value->AppendAsTraceFormat(&json);
   EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"]}", json);
 
   // And that it is still usable.
   nested_dict_value->SetInteger("f", 3);
   nested_dict_value->BeginDictionary("g");
   nested_dict_value->EndDictionary();
   json = "";
   nested_dict_value->AppendAsTraceFormat(&json);
   EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"],\"f\":3,\"g\":{}}", json);
 }
 
 }  // namespace trace_event
 }  // namespace base