Remove EnableMemoryInfo WebSetting, rename internal to preciseMemoryInfoEnabled

Source/core/timing/MemoryInfo.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 119 matching lines @@
     return bucketSizeList[numberOfBuckets - 1];
 }
 
 
 MemoryInfo::MemoryInfo(LocalFrame* frame)
 {
     ScriptWrappable::init(this);
     if (!frame || !frame->settings())
         return;
 
-    if (frame->settings()->memoryInfoEnabled()) {
+    if (frame->settings()->preciseMemoryInfoEnabled()) {
         ScriptGCEvent::getHeapSize(m_info);
     } else {
         DEFINE_STATIC_LOCAL(HeapSizeCache, heapSizeCache, ());
         heapSizeCache.getCachedHeapSize(m_info);
     }
 }
 
 } // namespace WebCore