Revert of Make nanobench and dm be usable from Chromium build

bench/nanobench_main.cpp

Index: bench/nanobench_main.cpp
diff --git a/bench/nanobench_main.cpp b/bench/nanobench_main.cpp
deleted file mode 100644
index a598adc264809c3ea73a4b68346c35c66eb26a2d..0000000000000000000000000000000000000000
--- a/bench/nanobench_main.cpp
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#include "CrashHandler.h"
-#include "SkCommandLineFlags.h"
-#include "nanobench.h"
-
-int main(int argc, char * const argv[]) {
-    SetupCrashHandler();
-    SkCommandLineFlags::Parse(argc, const_cast<char**>(argv));
-    return nanobench_main();
-
-}