Try not to inline tcmalloc::Abort() so we can find it in stack trace.

third_party/tcmalloc/chromium/src/base/abort.cc

+// Copyright (c) 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/abort.h"
+
+#include "base/basictypes.h"
+
+namespace tcmalloc {
+
+// Try not to inline so we can find Abort() call from stack trace.
+ATTRIBUTE_NOINLINE void Abort() {
+  // Make a segmentation fault to force abort. Writing to a specific address
+  // so it's easier to find on crash stacks.
+  *(reinterpret_cast<volatile char*>(NULL) + 57) = 0x2001;
+}
+
+} // namespace tcmalloc