Oilpan: move MessagePortArray to the heap.

Source/core/events/MessageEvent.h

Index: Source/core/events/MessageEvent.h
diff --git a/Source/core/events/MessageEvent.h b/Source/core/events/MessageEvent.h
index 966f620d413b5f27fd5074fb7c87f9a5ec223819..cae88b150aaef12248f078d01c8a2e6f2fb489a2 100644
--- a/Source/core/events/MessageEvent.h
+++ b/Source/core/events/MessageEvent.h
@@ -53,11 +53,11 @@ public:
     {
         return adoptRefWillBeNoop(new MessageEvent);
     }
-    static PassRefPtrWillBeRawPtr<MessageEvent> create(PassOwnPtr<MessagePortArray> ports, const String& origin = String(), const String& lastEventId = String(), PassRefPtrWillBeRawPtr<EventTarget> source = nullptr)
+    static PassRefPtrWillBeRawPtr<MessageEvent> create(PassOwnPtrWillBeRawPtr<MessagePortArray> ports, const String& origin = String(), const String& lastEventId = String(), PassRefPtrWillBeRawPtr<EventTarget> source = nullptr)
     {
         return adoptRefWillBeNoop(new MessageEvent(origin, lastEventId, source, ports));
     }
-    static PassRefPtrWillBeRawPtr<MessageEvent> create(PassOwnPtr<MessagePortArray> ports, PassRefPtr<SerializedScriptValue> data, const String& origin = String(), const String& lastEventId = String(), PassRefPtrWillBeRawPtr<EventTarget> source = nullptr)
+    static PassRefPtrWillBeRawPtr<MessageEvent> create(PassOwnPtrWillBeRawPtr<MessagePortArray> ports, PassRefPtr<SerializedScriptValue> data, const String& origin = String(), const String& lastEventId = String(), PassRefPtrWillBeRawPtr<EventTarget> source = nullptr)
     {
         return adoptRefWillBeNoop(new MessageEvent(data, origin, lastEventId, source, ports));
     }
@@ -80,8 +80,8 @@ public:
     static PassRefPtrWillBeRawPtr<MessageEvent> create(const AtomicString& type, const MessageEventInit& initializer, ExceptionState&);
     virtual ~MessageEvent();
 
-    void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, const String& origin, const String& lastEventId, LocalDOMWindow* source, PassOwnPtr<MessagePortArray>);
-    void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, LocalDOMWindow* source, PassOwnPtr<MessagePortArray>);
+    void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, const String& origin, const String& lastEventId, LocalDOMWindow* source, PassOwnPtrWillBeRawPtr<MessagePortArray>);
+    void initMessageEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, LocalDOMWindow* source, PassOwnPtrWillBeRawPtr<MessagePortArray>);
 
     const String& origin() const { return m_origin; }
     const String& lastEventId() const { return m_lastEventId; }
@@ -118,8 +118,8 @@ public:
 private:
     MessageEvent();
     MessageEvent(const AtomicString&, const MessageEventInit&);
-    MessageEvent(const String& origin, const String& lastEventId, PassRefPtrWillBeRawPtr<EventTarget> source, PassOwnPtr<MessagePortArray>);
-    MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, PassRefPtrWillBeRawPtr<EventTarget> source, PassOwnPtr<MessagePortArray>);
+    MessageEvent(const String& origin, const String& lastEventId, PassRefPtrWillBeRawPtr<EventTarget> source, PassOwnPtrWillBeRawPtr<MessagePortArray>);
+    MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, PassRefPtrWillBeRawPtr<EventTarget> source, PassOwnPtrWillBeRawPtr<MessagePortArray>);
     MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, PassRefPtrWillBeRawPtr<EventTarget> source, PassOwnPtr<MessagePortChannelArray>);
 
     MessageEvent(const String& data, const String& origin);
@@ -137,7 +137,7 @@ private:
     // m_ports are the MessagePorts in an engtangled state, and m_channels are
     // the MessageChannels in a disentangled state. Only one of them can be
     // non-empty at a time. entangleMessagePorts() moves between the states.
-    OwnPtr<MessagePortArray> m_ports;
+    OwnPtrWillBeMember<MessagePortArray> m_ports;
     OwnPtr<MessagePortChannelArray> m_channels;
 };