Add dump name for tracing in PartitionAlloc for sub-allocations

third_party/WebKit/Source/wtf/Partitions.h

 /*
  * Copyright (C) 2013 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 80 matching lines @@
         totalSize += m_layoutAllocator.root()->totalSizeOfCommittedPages;
         return totalSize;
     }
 
     static void decommitFreeableMemory();
 
     static void reportMemoryUsageHistogram();
 
     static void dumpMemoryStats(bool isLightDump, PartitionStatsDumper*);
 
+    static void setAllocatorPoolNameForTracing(const char* name) { m_allocatorPoolNameForTracing = name; }
+    static const char* allocatorPoolNameForTracing() { return m_allocatorPoolNameForTracing; }
+
     ALWAYS_INLINE static void* bufferMalloc(size_t n)
     {
         return partitionAllocGeneric(bufferPartition(), n);
     }
 
     ALWAYS_INLINE static void* bufferRealloc(void* p, size_t n)
     {
         return partitionReallocGeneric(bufferPartition(), p, n);
     }
 
@@ skipping 25 matching lines @@
     //   - Buffer partition: A partition to allocate objects that have a strong
     //     risk where the length and/or the contents are exploited from user
     //     scripts. Vectors, HashTables, ArrayBufferContents and Strings are
     //     allocated in the buffer partition.
     //   - Fast malloc partition: A partition to allocate all other objects.
     static PartitionAllocatorGeneric m_fastMallocAllocator;
     static PartitionAllocatorGeneric m_bufferAllocator;
     static SizeSpecificPartitionAllocator<3328> m_nodeAllocator;
     static SizeSpecificPartitionAllocator<1024> m_layoutAllocator;
     static HistogramEnumerationFunction m_histogramEnumeration;
+
+    // Stores the allocator name used for tracing allocations from the partitions.
+    static const char* m_allocatorPoolNameForTracing;
 };
 
 } // namespace WTF
 
 #endif // Partitions_h