2 files changed, 11 insertions, 2 deletions
diff --git a/third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h b/third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h
index 5bee019..950b603 100644
--- a/third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h
+++ b/third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2005, Google Inc.
+// Copyright (c) 2012, Google Inc.
 // All rights reserved.
 // 
 // Redistribution and use in source and binary forms, with or without
@@ -307,6 +307,10 @@ class PERFTOOLS_DLL_DECL MallocExtension {
   // malloc implementation during initialization.
   static void Register(MallocExtension* implementation);
 
+  // On the current thread, return the total number of bytes allocated.
+  // (Currently only implemented in tcmalloc.)
+  static unsigned int GetBytesAllocatedOnCurrentThread();
+
   // Returns detailed information about malloc's freelists. For each list,
   // return a FreeListInfo:
   struct FreeListInfo {
diff --git a/third_party/tcmalloc/chromium/src/malloc_extension.cc b/third_party/tcmalloc/chromium/src/malloc_extension.cc
index 2d6497f..fb30d39 100644
--- a/third_party/tcmalloc/chromium/src/malloc_extension.cc
+++ b/third_party/tcmalloc/chromium/src/malloc_extension.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2005, Google Inc.
+// Copyright (c) 2012, Google Inc.
 // All rights reserved.
 // 
 // Redistribution and use in source and binary forms, with or without
@@ -50,6 +50,7 @@
 #include "gperftools/malloc_extension.h"
 #include "gperftools/malloc_extension_c.h"
 #include "maybe_threads.h"
+#include "thread_cache.h"
 
 using STL_NAMESPACE::string;
 using STL_NAMESPACE::vector;
@@ -220,6 +221,10 @@ void MallocExtension::Register(MallocExtension* implementation) {
   }
 }
 
+unsigned int MallocExtension::GetBytesAllocatedOnCurrentThread() {
+  return tcmalloc::ThreadCache::GetBytesAllocatedOnCurrentThread();
+}
+
 // -----------------------------------------------------------------------
 // Heap sampling support
 // -----------------------------------------------------------------------