Oilpan: move History to the oilpan heap.

R=ager@chromium.org,haraken@chromium.org
BUG=340522

Review URL: https://codereview.chromium.org/201083004

git-svn-id: svn://svn.chromium.org/blink/trunk@169540 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/events/PopStateEvent.cpp

@@ -48,7 +48,7 @@ PopStateEvent::PopStateEvent(const AtomicString& type, const PopStateEventInit&
     ScriptWrappable::init(this);
 }
 
-PopStateEvent::PopStateEvent(PassRefPtr<SerializedScriptValue> serializedState, PassRefPtr<History> history)
+PopStateEvent::PopStateEvent(PassRefPtr<SerializedScriptValue> serializedState, PassRefPtrWillBeRawPtr<History> history)
     : Event(EventTypeNames::popstate, false, true)
     , m_serializedState(serializedState)
     , m_history(history)
@@ -65,7 +65,7 @@ PassRefPtr<PopStateEvent> PopStateEvent::create()
     return adoptRef(new PopStateEvent);
 }
 
-PassRefPtr<PopStateEvent> PopStateEvent::create(PassRefPtr<SerializedScriptValue> serializedState, PassRefPtr<History> history)
+PassRefPtr<PopStateEvent> PopStateEvent::create(PassRefPtr<SerializedScriptValue> serializedState, PassRefPtrWillBeRawPtr<History> history)
 {
     return adoptRef(new PopStateEvent(serializedState, history));
 }

third_party/WebKit/Source/core/events/PopStateEvent.h

@@ -28,6 +28,7 @@
 #define PopStateEvent_h
 
 #include "core/events/Event.h"
+#include "heap/Handle.h"
 
 namespace WebCore {
 
@@ -40,7 +41,7 @@ class PopStateEvent FINAL : public Event {
 public:
     virtual ~PopStateEvent();
     static PassRefPtr<PopStateEvent> create();
-    static PassRefPtr<PopStateEvent> create(PassRefPtr<SerializedScriptValue>, PassRefPtr<History>);
+    static PassRefPtr<PopStateEvent> create(PassRefPtr<SerializedScriptValue>, PassRefPtrWillBeRawPtr<History>);
     static PassRefPtr<PopStateEvent> create(const AtomicString&, const PopStateEventInit&);
 
     SerializedScriptValue* serializedState() const { return m_serializedState.get(); }
@@ -58,10 +59,10 @@ public:
 private:
     PopStateEvent();
     PopStateEvent(const AtomicString&, const PopStateEventInit&);
-    explicit PopStateEvent(PassRefPtr<SerializedScriptValue>, PassRefPtr<History>);
+    PopStateEvent(PassRefPtr<SerializedScriptValue>, PassRefPtrWillBeRawPtr<History>);
 
     RefPtr<SerializedScriptValue> m_serializedState;
-    RefPtr<History> m_history;
+    RefPtrWillBePersistent<History> m_history;
 };
 
 } // namespace WebCore

third_party/WebKit/Source/core/frame/DOMWindow.h

@@ -344,7 +344,7 @@ enum PageshowEventPersistence {
         HashSet<DOMWindowProperty*> m_properties;
 
         mutable RefPtrWillBePersistent<Screen> m_screen;
-        mutable RefPtr<History> m_history;
+        mutable RefPtrWillBePersistent<History> m_history;
         mutable RefPtr<BarProp> m_locationbar;
         mutable RefPtr<BarProp> m_menubar;
         mutable RefPtr<BarProp> m_personalbar;

third_party/WebKit/Source/core/frame/History.h

@@ -30,6 +30,7 @@
 #include "bindings/v8/SerializedScriptValue.h"
 #include "core/loader/FrameLoaderTypes.h"
 #include "core/frame/DOMWindowProperty.h"
+#include "heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
@@ -41,9 +42,12 @@ class KURL;
 class ExecutionContext;
 class ExceptionState;
 
-class History FINAL : public ScriptWrappable, public RefCounted<History>, public DOMWindowProperty {
+class History FINAL : public RefCountedWillBeGarbageCollectedFinalized<History>, public ScriptWrappable, public DOMWindowProperty {
 public:
-    static PassRefPtr<History> create(LocalFrame* frame) { return adoptRef(new History(frame)); }
+    static PassRefPtrWillBeRawPtr<History> create(LocalFrame* frame)
+    {
+        return adoptRefWillBeNoop(new History(frame));
+    }
 
     unsigned length() const;
     SerializedScriptValue* state();
@@ -57,6 +61,8 @@ public:
 
     void stateObjectAdded(PassRefPtr<SerializedScriptValue>, const String& title, const String& url, UpdateBackForwardListPolicy, ExceptionState&);
 
+    void trace(Visitor*) { }
+
 private:
     explicit History(LocalFrame*);
 

third_party/WebKit/Source/core/frame/History.idl

@@ -23,7 +23,9 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-interface History {
+[
+    WillBeGarbageCollected,
+] interface History {
     readonly attribute unsigned long length;
     [Custom=Getter] readonly attribute SerializedScriptValue state;