A deeper heap profile dumper in third_party/tcmalloc/chromium.

third_party/tcmalloc/chromium/src/heap-profile-table.h

 // Copyright (c) 2006, 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 175 matching lines @@
   // FillOrderedProfile and IterateOrderedAllocContexts will contain mmap'ed
   // memory regions as at calling RefreshMMapData.
   void RefreshMMapData();
 
   // Clear the internal mmap information.  Results of FillOrderedProfile and
   // IterateOrderedAllocContexts won't contain mmap'ed memory regions after
   // calling ClearMMapData.
   void ClearMMapData();
 
  private:
+  friend class DeepHeapProfile;
 
   // data types ----------------------------
 
   // Hash table bucket to hold (de)allocation stats
   // for a given allocation call stack trace.
   struct Bucket : public Stats {
     uintptr_t    hash;   // Hash value of the stack trace
     int          depth;  // Depth of stack trace
     const void** stack;  // Stack trace
     Bucket*      next;   // Next entry in hash-table
@@ skipping 202 matching lines @@
   // Helpers for sorting and generating leak reports
   struct Entry;
   struct ReportState;
   static void ReportCallback(const void* ptr, AllocValue* v, ReportState*);
   static void ReportObject(const void* ptr, AllocValue* v, char*);
 
   DISALLOW_COPY_AND_ASSIGN(Snapshot);
 };
 
 #endif  // BASE_HEAP_PROFILE_TABLE_H_