Oilpan: move ApplicationCache to the oilpan heap.

Make this EventTarget-derived object a garbage collected object.

R=haraken@chromium.org
BUG=340522

Review URL: https://codereview.chromium.org/208083003

git-svn-id: svn://svn.chromium.org/blink/trunk@169744 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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

@@ -361,7 +361,7 @@ enum PageshowEventPersistence {
 
         mutable RefPtrWillBePersistent<Storage> m_sessionStorage;
         mutable RefPtrWillBePersistent<Storage> m_localStorage;
-        mutable RefPtr<ApplicationCache> m_applicationCache;
+        mutable RefPtrWillBePersistent<ApplicationCache> m_applicationCache;
 
         mutable RefPtrWillBePersistent<Performance> m_performance;
 

third_party/WebKit/Source/core/loader/appcache/ApplicationCache.h

@@ -31,6 +31,7 @@
 #include "core/events/ThreadLocalEventNames.h"
 #include "core/loader/appcache/ApplicationCacheHost.h"
 #include "core/frame/DOMWindowProperty.h"
+#include "heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
@@ -41,10 +42,13 @@ class ExceptionState;
 class LocalFrame;
 class KURL;
 
-class ApplicationCache FINAL : public ScriptWrappable, public RefCounted<ApplicationCache>, public EventTargetWithInlineData, public DOMWindowProperty {
-    REFCOUNTED_EVENT_TARGET(ApplicationCache);
+class ApplicationCache FINAL : public RefCountedWillBeRefCountedGarbageCollected<ApplicationCache>, public ScriptWrappable, public EventTargetWithInlineData, public DOMWindowProperty {
+    DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<ApplicationCache>);
 public:
-    static PassRefPtr<ApplicationCache> create(LocalFrame* frame) { return adoptRef(new ApplicationCache(frame)); }
+    static PassRefPtrWillBeRawPtr<ApplicationCache> create(LocalFrame* frame)
+    {
+        return adoptRefWillBeRefCountedGarbageCollected(new ApplicationCache(frame));
+    }
     virtual ~ApplicationCache() { ASSERT(!m_frame); }
 
     virtual void willDestroyGlobalObjectInFrame() OVERRIDE;
@@ -70,6 +74,8 @@ public:
 
     static const AtomicString& toEventType(ApplicationCacheHost::EventID);
 
+    void trace(Visitor*) { }
+
 private:
     explicit ApplicationCache(LocalFrame*);
 

third_party/WebKit/Source/core/loader/appcache/ApplicationCache.idl

@@ -24,7 +24,8 @@
  */
 
 [
-    DoNotCheckConstants
+    DoNotCheckConstants,
+    WillBeGarbageCollected,
 ] interface ApplicationCache : EventTarget {
     // update status
     const unsigned short UNCACHED = 0;