Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/dom/custom/CustomElementsRegistryTest.cpp

 // Copyright 2016 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 "core/dom/custom/CustomElementsRegistry.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
@@ skipping 53 matching lines @@
 private:
     Persistent<Document> m_document;
     Persistent<CustomElementsRegistry> m_registry;
 };
 
 class CustomElementsRegistryFrameTest : public CustomElementsRegistryTestBase {
 protected:
     void SetUp() override
     {
         CustomElementsRegistryTestBase::SetUp();
-        m_page.reset(DummyPageHolder::create(IntSize(1, 1)).release());
+        m_page.reset(DummyPageHolder::create(IntSize(1, 1)).leakPtr());
     }
 
     void TearDown() override
     {
         m_page = nullptr;
         CustomElementsRegistryTestBase::TearDown();
     }
 
     Document& document() override { return m_page->document(); }
 
@@ skipping 376 matching lines @@
         << "remove() should invoke disconnectedCallback";
 
     EXPECT_EQ(1u, definition->m_logs.size())
         << "remove() should not invoke other callbacks";
 }
 
 // TODO(dominicc): Add tests which adjust the "is" attribute when type
 // extensions are implemented.
 
 } // namespace blink