Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/animation/InterpolableValue.h

 // 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.
 
 #ifndef InterpolableValue_h
 #define InterpolableValue_h
 
 #include "core/CoreExport.h"
 #include "core/animation/animatable/AnimatableValue.h"
 #include "platform/heap/Handle.h"
-#include "wtf/PtrUtil.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
-#include <memory>
 
 namespace blink {
 
 // Represents the components of a PropertySpecificKeyframe's value that change smoothly as it interpolates to an adjacent value.
 class CORE_EXPORT InterpolableValue {
     USING_FAST_MALLOC(InterpolableValue);
 public:
     virtual ~InterpolableValue() { }
 
     virtual bool isNumber() const { return false; }
     virtual bool isBool() const { return false; }
     virtual bool isList() const { return false; }
     virtual bool isAnimatableValue() const { return false; }
 
     virtual bool equals(const InterpolableValue&) const = 0;
-    virtual std::unique_ptr<InterpolableValue> clone() const = 0;
-    virtual std::unique_ptr<InterpolableValue> cloneAndZero() const = 0;
+    virtual PassOwnPtr<InterpolableValue> clone() const = 0;
+    virtual PassOwnPtr<InterpolableValue> cloneAndZero() const = 0;
     virtual void scale(double scale) = 0;
     virtual void scaleAndAdd(double scale, const InterpolableValue& other) = 0;
 
 private:
     virtual void interpolate(const InterpolableValue& to, const double progress, InterpolableValue& result) const = 0;
 
     friend class Interpolation;
     friend class PairwisePrimitiveInterpolation;
 
     // Keep interpolate private, but allow calls within the hierarchy without
     // knowledge of type.
     friend class DeferredLegacyStyleInterpolation;
     friend class InterpolableNumber;
     friend class InterpolableBool;
     friend class InterpolableList;
 
     friend class AnimationInterpolableValueTest;
 };
 
 class CORE_EXPORT InterpolableNumber final : public InterpolableValue {
 public:
-    static std::unique_ptr<InterpolableNumber> create(double value)
+    static PassOwnPtr<InterpolableNumber> create(double value)
     {
-        return wrapUnique(new InterpolableNumber(value));
+        return adoptPtr(new InterpolableNumber(value));
     }
 
     bool isNumber() const final { return true; }
     double value() const { return m_value; }
     bool equals(const InterpolableValue& other) const final;
-    std::unique_ptr<InterpolableValue> clone() const final { return create(m_value); }
-    std::unique_ptr<InterpolableValue> cloneAndZero() const final { return create(0); }
+    PassOwnPtr<InterpolableValue> clone() const final { return create(m_value); }
+    PassOwnPtr<InterpolableValue> cloneAndZero() const final { return create(0); }
     void scale(double scale) final;
     void scaleAndAdd(double scale, const InterpolableValue& other) final;
     void set(double value) { m_value = value; }
 
 private:
     void interpolate(const InterpolableValue& to, const double progress, InterpolableValue& result) const final;
     double m_value;
 
     explicit InterpolableNumber(double value)
         : m_value(value)
     {
     }
 
 };
 
 class CORE_EXPORT InterpolableBool final : public InterpolableValue {
 public:
-    static std::unique_ptr<InterpolableBool> create(bool value)
+    static PassOwnPtr<InterpolableBool> create(bool value)
     {
-        return wrapUnique(new InterpolableBool(value));
+        return adoptPtr(new InterpolableBool(value));
     }
 
     bool isBool() const final { return true; }
     bool value() const { return m_value; }
     bool equals(const InterpolableValue&) const final { ASSERT_NOT_REACHED(); return false; }
-    std::unique_ptr<InterpolableValue> clone() const final { return create(m_value); }
-    std::unique_ptr<InterpolableValue> cloneAndZero() const final { ASSERT_NOT_REACHED(); return nullptr; }
+    PassOwnPtr<InterpolableValue> clone() const final { return create(m_value); }
+    PassOwnPtr<InterpolableValue> cloneAndZero() const final { ASSERT_NOT_REACHED(); return nullptr; }
     void scale(double scale) final { ASSERT_NOT_REACHED(); }
     void scaleAndAdd(double scale, const InterpolableValue& other) final { ASSERT_NOT_REACHED(); }
 
 private:
     void interpolate(const InterpolableValue& to, const double progress, InterpolableValue& result) const final;
     bool m_value;
 
     explicit InterpolableBool(bool value)
         : m_value(value)
     {
     }
 
 };
 
 class CORE_EXPORT InterpolableList : public InterpolableValue {
 public:
     // Explicitly delete operator= because MSVC automatically generate
     // copy constructors and operator= for dll-exported classes.
     // Since InterpolableList is not copyable, automatically generated
     // operator= causes MSVC compiler error.
     // However, we cannot use WTF_MAKE_NONCOPYABLE because InterpolableList
     // has its own copy constructor. So just delete operator= here.
     InterpolableList& operator=(const InterpolableList&) = delete;
 
-    static std::unique_ptr<InterpolableList> create(const InterpolableList &other)
+    static PassOwnPtr<InterpolableList> create(const InterpolableList &other)
     {
-        return wrapUnique(new InterpolableList(other));
+        return adoptPtr(new InterpolableList(other));
     }
 
-    static std::unique_ptr<InterpolableList> create(size_t size)
+    static PassOwnPtr<InterpolableList> create(size_t size)
     {
-        return wrapUnique(new InterpolableList(size));
+        return adoptPtr(new InterpolableList(size));
     }
 
     bool isList() const final { return true; }
-    void set(size_t position, std::unique_ptr<InterpolableValue> value)
+    void set(size_t position, PassOwnPtr<InterpolableValue> value)
     {
         ASSERT(position < m_size);
         m_values[position] = std::move(value);
     }
     const InterpolableValue* get(size_t position) const
     {
         ASSERT(position < m_size);
         return m_values[position].get();
     }
-    std::unique_ptr<InterpolableValue>& getMutable(size_t position)
+    OwnPtr<InterpolableValue>& getMutable(size_t position)
     {
         ASSERT(position < m_size);
         return m_values[position];
     }
     size_t length() const { return m_size; }
     bool equals(const InterpolableValue& other) const final;
-    std::unique_ptr<InterpolableValue> clone() const final { return create(*this); }
-    std::unique_ptr<InterpolableValue> cloneAndZero() const final;
+    PassOwnPtr<InterpolableValue> clone() const final { return create(*this); }
+    PassOwnPtr<InterpolableValue> cloneAndZero() const final;
     void scale(double scale) final;
     void scaleAndAdd(double scale, const InterpolableValue& other) final;
 
 private:
     void interpolate(const InterpolableValue& to, const double progress, InterpolableValue& result) const final;
     explicit InterpolableList(size_t size)
         : m_size(size)
         , m_values(m_size)
     {
     }
 
     InterpolableList(const InterpolableList& other)
         : m_size(other.m_size)
         , m_values(m_size)
     {
         for (size_t i = 0; i < m_size; i++)
             set(i, other.m_values[i]->clone());
     }
 
     size_t m_size;
-    Vector<std::unique_ptr<InterpolableValue>> m_values;
+    Vector<OwnPtr<InterpolableValue>> m_values;
 };
 
 // FIXME: Remove this when we can.
 class InterpolableAnimatableValue : public InterpolableValue {
 public:
-    static std::unique_ptr<InterpolableAnimatableValue> create(PassRefPtr<AnimatableValue> value)
+    static PassOwnPtr<InterpolableAnimatableValue> create(PassRefPtr<AnimatableValue> value)
     {
-        return wrapUnique(new InterpolableAnimatableValue(value));
+        return adoptPtr(new InterpolableAnimatableValue(value));
     }
 
     bool isAnimatableValue() const final { return true; }
     AnimatableValue* value() const { return m_value.get(); }
     bool equals(const InterpolableValue&) const final { ASSERT_NOT_REACHED(); return false; }
-    std::unique_ptr<InterpolableValue> clone() const final { return create(m_value); }
-    std::unique_ptr<InterpolableValue> cloneAndZero() const final { ASSERT_NOT_REACHED(); return nullptr; }
+    PassOwnPtr<InterpolableValue> clone() const final { return create(m_value); }
+    PassOwnPtr<InterpolableValue> cloneAndZero() const final { ASSERT_NOT_REACHED(); return nullptr; }
     void scale(double scale) final { ASSERT_NOT_REACHED(); }
     void scaleAndAdd(double scale, const InterpolableValue& other) final { ASSERT_NOT_REACHED(); }
 
 private:
     void interpolate(const InterpolableValue &to, const double progress, InterpolableValue& result) const final;
     RefPtr<AnimatableValue> m_value;
 
     InterpolableAnimatableValue(PassRefPtr<AnimatableValue> value)
         : m_value(value)
     {
     }
 };
 
 DEFINE_TYPE_CASTS(InterpolableNumber, InterpolableValue, value, value->isNumber(), value.isNumber());
 DEFINE_TYPE_CASTS(InterpolableBool, InterpolableValue, value, value->isBool(), value.isBool());
 DEFINE_TYPE_CASTS(InterpolableList, InterpolableValue, value, value->isList(), value.isList());
 DEFINE_TYPE_CASTS(InterpolableAnimatableValue, InterpolableValue, value, value->isAnimatableValue(), value.isAnimatableValue());
 
 } // namespace blink
 
 #endif