Add flags and skeleton for profiling process.

chrome/profiling/profiling_main.cc

+// Copyright 2017 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 "chrome/profiling/profiling_main.h"
+
+#include "base/command_line.h"
+#include "build/build_config.h"
+
+#if defined(OS_WIN)
+#include "base/win/win_util.h"
+#endif
+
+namespace profiling {
+
+int ProfilingMain(const base::CommandLine& cmdline) {
+  // TODO(brettw) implement this.
+
+#if defined(OS_WIN)
+  base::win::SetShouldCrashOnProcessDetach(false);
+#endif
+  return 0;
+}
+
+}  // namespace profiling