Add breakpad support to mojo shell apk.

shell/crash/breakpad.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.
+
+// This file was forked from components/crash/app/breakpad_linux.h in chromium.
+
+// Public interface for enabling Breakpad on Linux systems.
+
+#ifndef SHELL_CRASH_BREAKPAD_H_
+#define SHELL_CRASH_BREAKPAD_H_
+
+#include "base/files/file_path.h"
+
+namespace breakpad {
+
+// Turns on the crash reporter.
+void InitCrashReporter(const base::FilePath& dumps_path);
+
+// Checks if crash reporting is enabled.
+bool IsCrashReporterEnabled();
+
+}  // namespace breakpad
+
+#endif  // SHELL_CRASH_BREAKPAD_H_