Revert 157524 "Get rid of fastMallocGoodSize() and replace it wi..."

trunk/Source/wtf/FastMalloc.cpp

Index: trunk/Source/wtf/FastMalloc.cpp
===================================================================
--- trunk/Source/wtf/FastMalloc.cpp	(revision 157524)
+++ trunk/Source/wtf/FastMalloc.cpp	(working copy)
@@ -213,6 +213,15 @@
 
 namespace WTF {
 
+size_t fastMallocGoodSize(size_t bytes)
+{
+#if OS(MACOSX)
+    return malloc_good_size(bytes);
+#else
+    return bytes;
+#endif
+}
+
 void* fastMalloc(size_t n)
 {
     ASSERT(!isForbidden());
@@ -2457,6 +2466,13 @@
 
 #define pageheap getPageHeap()
 
+size_t fastMallocGoodSize(size_t bytes)
+{
+    if (!phinited)
+        TCMalloc_ThreadCache::InitModule();
+    return AllocationSize(bytes);
+}
+
 #if USE_BACKGROUND_THREAD_TO_SCAVENGE_MEMORY
 
 #if HAVE(DISPATCH_H) || OS(WIN)