Remove various Heap* types.

sky/engine/core/fetch/MemoryCache.cpp

Index: sky/engine/core/fetch/MemoryCache.cpp
diff --git a/sky/engine/core/fetch/MemoryCache.cpp b/sky/engine/core/fetch/MemoryCache.cpp
index 4a98b62a5be24425f813d9c81e00aadd718b3de3..bd5b79a4fa5c4118493e865c8d096c02b8f33a99 100644
--- a/sky/engine/core/fetch/MemoryCache.cpp
+++ b/sky/engine/core/fetch/MemoryCache.cpp
@@ -56,18 +56,8 @@ MemoryCache* memoryCache()
 
 PassOwnPtr<MemoryCache> replaceMemoryCacheForTesting(PassOwnPtr<MemoryCache> cache)
 {
-#if ENABLE(OILPAN)
-    // Move m_liveResources content to keep Resource objects alive.
-    for (HeapHashSet<Member<Resource> >::iterator i = memoryCache()->m_liveResources.begin();
-        i != memoryCache()->m_liveResources.end();
-        ++i) {
-        cache->m_liveResources.add(*i);
-    }
-    memoryCache()->m_liveResources.clear();
-#else
     // Make sure we have non-empty gMemoryCache.
     memoryCache();
-#endif
     OwnPtr<MemoryCache> oldCache = gMemoryCache->release();
     *gMemoryCache = cache;
     return oldCache.release();