Type profiler by intercepting 'new' and 'delete' expressions.

base/allocator/type_profiler_tcmalloc.cc

Index: base/allocator/type_profiler_tcmalloc.cc
diff --git a/base/allocator/type_profiler_tcmalloc.cc b/base/allocator/type_profiler_tcmalloc.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d00d1701612cb1f19cd70c371265ee6f6e7f7564
--- /dev/null
+++ b/base/allocator/type_profiler_tcmalloc.cc
@@ -0,0 +1,37 @@
+// Copyright 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/allocator/type_profiler_tcmalloc.h"
+
+#if defined(TYPE_PROFILING)
+
+#include "base/allocator/type_profiler_control.h"
+#include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h"
+#include "third_party/tcmalloc/chromium/src/gperftools/type_profiler_map.h"
+
+namespace base {
+namespace type_profiler {
+
+void* NewInterceptForTCMalloc(void* ptr,
+                              size_t size,
+                              const std::type_info& type) {
+  if (IsProfiling() && IsHeapProfilerRunning())
+    InsertType(ptr, size, type);
+
+  return ptr;
+}
+
+void* DeleteInterceptForTCMalloc(void* ptr,
+                                 size_t size,
+                                 const std::type_info& type) {
+  if (IsProfiling() && IsHeapProfilerRunning())
+    EraseType(ptr);
+
+  return ptr;
+}
+
+}  // namespace type_profiler
+}  // namespace base
+
+#endif  // defined(TYPE_PROFILING)