Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/editing/InputMethodControllerTest.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 "core/editing/InputMethodController.h"
 
 #include "core/dom/Element.h"
 #include "core/dom/Range.h"
 #include "core/editing/FrameSelection.h"
 #include "core/events/MouseEvent.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLDocument.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/testing/DummyPageHolder.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include <memory>
 
 namespace blink {
 
 class InputMethodControllerTest : public ::testing::Test {
 protected:
     InputMethodController& controller() { return frame().inputMethodController(); }
     HTMLDocument& document() const { return *m_document; }
     LocalFrame& frame() const { return m_dummyPageHolder->frame(); }
     Element* insertHTMLElement(const char* elementCode, const char* elementId);
 
 private:
     void SetUp() override;
 
-    std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
+    OwnPtr<DummyPageHolder> m_dummyPageHolder;
     Persistent<HTMLDocument> m_document;
 };
 
 void InputMethodControllerTest::SetUp()
 {
     m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
     m_document = toHTMLDocument(&m_dummyPageHolder->document());
     DCHECK(m_document);
 }
 
@@ skipping 328 matching lines @@
     controller().setComposition("foo", underlines, 0, 3);
     EXPECT_STREQ("beforeinput.isComposing:true", document().title().utf8().data());
 
     document().setTitle(emptyString());
     controller().confirmComposition();
     // Last 'beforeinput' should also be inside composition scope.
     EXPECT_STREQ("beforeinput.isComposing:true", document().title().utf8().data());
 }
 
 } // namespace blink