Turn components/crash into a layered component.

components/crash/app/breakpad_mac.h

-// Copyright 2013 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.
-
-#ifndef COMPONENTS_CRASH_APP_BREAKPAD_MAC_H_
-#define COMPONENTS_CRASH_APP_BREAKPAD_MAC_H_
-
-#include <string>
-
-// This header defines the entry points for Breakpad integration.
-
-namespace breakpad {
-
-// Initializes Breakpad.
-void InitCrashReporter(const std::string& process_type);
-
-// Give Breakpad a chance to store information about the current process.
-// Extra information requires a parsed command line, so call this after
-// CommandLine::Init has been called.
-void InitCrashProcessInfo(const std::string& process_type_switch);
-
-// Is Breakpad enabled?
-bool IsCrashReporterEnabled();
-
-}  // namespace breakpad
-
-#endif  // COMPONENTS_CRASH_APP_BREAKPAD_MAC_H_