Import google-glog's Symbolize() and use it in debug_util_posix.cc.

base/third_party/symbolize/utilities.h

Index: base/third_party/symbolize/utilities.h
diff --git a/base/third_party/symbolize/utilities.h b/base/third_party/symbolize/utilities.h
new file mode 100644
index 0000000000000000000000000000000000000000..0bed526634d97d22ed9a41977fd3773ce7ee49eb
--- /dev/null
+++ b/base/third_party/symbolize/utilities.h
@@ -0,0 +1,11 @@
+// Copyright (c) 2010 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 <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+typedef uint64_t uint64;
+#define HAVE_SYMBOLIZE 1
+#define ATTRIBUTE_NOINLINE __attribute__ ((noinline))