Oilpan: eager resource disposal on MemoryCache eviction.

Source/core/fetch/MemoryCache.h

Index: Source/core/fetch/MemoryCache.h
diff --git a/Source/core/fetch/MemoryCache.h b/Source/core/fetch/MemoryCache.h
index f75a4e0f5dd13b4167aab2097ae91dcc2cc72859..f184080195b44d4f0bd5c6a193942f90ef820fff 100644
--- a/Source/core/fetch/MemoryCache.h
+++ b/Source/core/fetch/MemoryCache.h
@@ -74,8 +74,14 @@ enum UpdateReason {
 // from MemoryCacheLRUList.
 class MemoryCacheEntry final : public NoBaseWillBeGarbageCollectedFinalized<MemoryCacheEntry> {
 public:
-    static PassOwnPtrWillBeRawPtr<MemoryCacheEntry> create(Resource* resource) { return adoptPtrWillBeNoop(new MemoryCacheEntry(resource)); }
+    static PassOwnPtrWillBeRawPtr<MemoryCacheEntry> create(Resource* resource)
+    {
+        return adoptPtrWillBeNoop(new MemoryCacheEntry(resource));
+    }
     void trace(Visitor*);
+#if ENABLE(OILPAN)
+    void dispose();
+#endif
 
     ResourcePtr<Resource> m_resource;
     bool m_inLiveDecodedResourcesList;