Added sandboxed process launcher

content/browser/android/sandboxed_process_launcher.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_SANDBOXED_PROCESS_LAUNCHER_H_
+#define CONTENT_BROWSER_ANDROID_SANDBOXED_PROCESS_LAUNCHER_H_
+
+#include <jni.h>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/command_line.h"
+#include "base/process.h"
+
+namespace content {
+
+class SandboxedProcessClient {

[jam, 2012/06/12 17:24:11]

nit: now that we have the powerful bind callbacks, we avoid callback interfaces
with one function. just make this be a callback parameter to
StartSandboxedProcess

[michaelbai, 2012/06/12 19:44:26]

Done.

+ public:
+  // Called back when the process was created with the process pid, or 0
+  // if the process could not be created.
+  virtual void OnSandboxedProcessStarted(base::ProcessHandle handle) = 0;

[jam, 2012/06/12 17:24:11]

nit: since you say "process id" above, you probably want this to be ProcessId
(which is typedef's to pid just like ProcessHandle on posix)

[michaelbai, 2012/06/12 19:44:26]

Done.

+};
+
+// Starts a process as a sandboxed process spawned by the Android
+// ActivityManager.
+// The connection object returned may be used with a subsequent call to
+// CancelStartSandboxedProcess()
+base::android::ScopedJavaLocalRef<jobject> StartSandboxedProcess(
+    const CommandLine::StringVector& argv,
+    int ipc_fd,
+    int crash_fd,
+    SandboxedProcessClient* client);
+
+void CancelStartSandboxedProcess(

[jam, 2012/06/12 17:24:11]

nit: add comment

[michaelbai, 2012/06/12 19:44:26]

Done.

+    const base::android::JavaRef<jobject>& connection);
+
+// Stops a sandboxed process based on the handle returned form
+// StartSandboxedProcess.
+void StopSandboxedProcess(base::ProcessHandle handle);
+
+// Registers JNI methods, this must be called before any other methods in this
+// file.
+bool RegisterSandboxedProcessLauncher(JNIEnv* env);
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_ANDROID_SANDBOXED_PROCESS_LAUNCHER_H_