Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/TracedValue.cpp

 // 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 "platform/TracedValue.h"
 
 #include "base/trace_event/trace_event_argument.h"
-#include "wtf/PtrUtil.h"
 #include "wtf/text/StringUTF8Adaptor.h"
-#include <memory>
 
 namespace blink {
 
-std::unique_ptr<TracedValue> TracedValue::create()
+PassOwnPtr<TracedValue> TracedValue::create()
 {
-    return wrapUnique(new TracedValue());
+    return adoptPtr(new TracedValue());
 }
 
 TracedValue::TracedValue()
     : m_tracedValue(new base::trace_event::TracedValue)
 {
 }
 
 TracedValue::~TracedValue()
 {
 }
@@ skipping 86 matching lines @@
 
 String TracedValue::toString() const
 {
     ASSERT(m_tracedValue.get());
     std::string out;
     m_tracedValue->AppendAsTraceFormat(&out);
     return String::fromUTF8(out.c_str());
 }
 
 } // namespace blink