Provide android specific implementation for MultiProcessTest::SpawnChildImpl

base/test/multiprocess_test_android.cc

+// Copyright (c) 2012 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 "base/test/multiprocess_test.h"
+
+#include <unistd.h>
+
+#include "base/logging.h"
+#include "base/process.h"
+#include "testing/multiprocess_func_list.h"
+
+namespace base {
+
+// A very basic implementation for android. On Android tests can run in an APK
+// and we don't have an executable to exec*. This implementation does the bare
+// minimum to execute the method specified by procname (in the child process).
+//  - File descriptors are not closed and hence |fds_to_map| is ignored.
+//  - |debug_on_start| is ignored.
+ProcessHandle MultiProcessTest::SpawnChildImpl(
+    const std::string& procname,
+    const FileHandleMappingVector& fds_to_map,
+    bool debug_on_start) {
+  pid_t pid = fork();
+
+  if (pid < 0) {
+    DPLOG(ERROR) << "fork";
+    return kNullProcessHandle;
+  } else if (pid == 0) {
+    // Child process.
+    _exit(multi_process_function_list::InvokeChildProcessTest(procname));
+  }
+
+  // Parent process.
+  return pid;
+}
+
+}  // namespace base