Encapsulate |MemoryCacheEntry::m_resource| and refactor pruneDead/LiveResources

third_party/WebKit/Source/core/fetch/MemoryCache.h

Index: third_party/WebKit/Source/core/fetch/MemoryCache.h
diff --git a/third_party/WebKit/Source/core/fetch/MemoryCache.h b/third_party/WebKit/Source/core/fetch/MemoryCache.h
index d2a56c05e9a70f4a12fb0b35bec2d700fec1454f..5878044c52ae8deeff02cc58bb24ce178e93ce88 100644
--- a/third_party/WebKit/Source/core/fetch/MemoryCache.h
+++ b/third_party/WebKit/Source/core/fetch/MemoryCache.h
@@ -74,8 +74,8 @@ public:
     }
     DECLARE_TRACE();
     void dispose();
+    Resource* resource();
 
-    Member<Resource> m_resource;
     bool m_inLiveDecodedResourcesList;
     unsigned m_accessCount;
     double m_lastDecodedAccessTime; // Used as a thrash guard
@@ -87,16 +87,18 @@ public:
 
 private:
     explicit MemoryCacheEntry(Resource* resource)
-        : m_resource(resource)
-        , m_inLiveDecodedResourcesList(false)
+        : m_inLiveDecodedResourcesList(false)
         , m_accessCount(0)
         , m_lastDecodedAccessTime(0.0)
         , m_previousInLiveResourcesList(nullptr)
         , m_nextInLiveResourcesList(nullptr)
         , m_previousInAllResourcesList(nullptr)
         , m_nextInAllResourcesList(nullptr)
+        , m_resource(resource)
     {
     }
+
+    Member<Resource> m_resource;
 };
 
 WILL_NOT_BE_EAGERLY_TRACED_CLASS(MemoryCacheEntry);