Remove OwnPtr from Blink.

third_party/WebKit/Source/modules/webaudio/DynamicsCompressorNodeTest.cpp

 // 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 "modules/webaudio/DynamicsCompressorNode.h"
 #include "core/testing/DummyPageHolder.h"
 #include "modules/webaudio/AbstractAudioContext.h"
+#include "modules/webaudio/DynamicsCompressorNode.h"
 #include "modules/webaudio/OfflineAudioContext.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include <memory>
 
 namespace blink {
 
 TEST(DynamicsCompressorNodeTest, ProcessorLifetime)
 {
-    OwnPtr<DummyPageHolder> page = DummyPageHolder::create();
+    std::unique_ptr<DummyPageHolder> page = DummyPageHolder::create();
     OfflineAudioContext* context = OfflineAudioContext::create(&page->document(), 2, 1, 48000, ASSERT_NO_EXCEPTION);
     DynamicsCompressorNode* node = context->createDynamicsCompressor(ASSERT_NO_EXCEPTION);
     DynamicsCompressorHandler& handler = node->dynamicsCompressorHandler();
     EXPECT_TRUE(handler.m_dynamicsCompressor);
     AbstractAudioContext::AutoLocker locker(context);
     handler.dispose();
     // m_dynamicsCompressor should live after dispose() because an audio thread
     // is using it.
     EXPECT_TRUE(handler.m_dynamicsCompressor);
 }
 
 } // namespace blink