Revert of android: Move launcher_android.cc to helper

content/browser/android/child_process_launcher_android.h

+// 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.
+
+#ifndef CONTENT_BROWSER_ANDROID_CHILD_PROCESS_LAUNCHER_ANDROID_H_
+#define CONTENT_BROWSER_ANDROID_CHILD_PROCESS_LAUNCHER_ANDROID_H_
+
+#include <jni.h>
+
+#include "base/callback.h"
+#include "base/command_line.h"
+#include "base/process/process.h"
+#include "content/public/browser/file_descriptor_info.h"
+
+// Contains the methods either being called from or calling to
+// ChildProcessLauncher.java.
+namespace content {
+
+
+typedef base::Callback<void(base::ProcessHandle, int /* launch result */)>
+    StartChildProcessCallback;
+
+// Starts a process as a child process spawned by the Android ActivityManager.
+// The created process handle is returned to the |callback| on success, 0 is
+// returned if the process could not be created.
+void StartChildProcess(
+    const base::CommandLine::StringVector& argv,
+    int child_process_id,
+    FileDescriptorInfo* files_to_register,
+    const StartChildProcessCallback& callback);
+
+// Stops a child process based on the handle returned from StartChildProcess.
+void StopChildProcess(base::ProcessHandle handle);
+
+bool IsChildProcessOomProtected(base::ProcessHandle handle);
+
+void SetChildProcessInForeground(base::ProcessHandle handle,
+                                 bool in_foreground);
+
+bool RegisterChildProcessLauncher(JNIEnv* env);
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_ANDROID_CHILD_PROCESS_LAUNCHER_ANDROID_H_