Added sandboxed process service.

content/common/android/surface_callback.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_COMMON_ANDROID_SURFACE_CALLBACK_H_
+#define CONTENT_COMMON_ANDROID_SURFACE_CALLBACK_H_
+#pragma once
+
+#include <jni.h>
+
+#include "base/callback.h"
+#include "content/common/android/surface_texture_peer.h"
+
+struct ANativeWindow;
+
+namespace base {
+class MessageLoopProxy;
+class WaitableEvent;
+}
+
+namespace content {
+// This file implements support for passing surface handles from Java

[jam, 2012/06/11 20:13:17]

nit: usually there's a blank line after the namespace content before the
functions/comments

[michaelbai, 2012/06/11 20:30:16]

Done.

+// to the correct thread on the native side. On Android, these surface
+// handles can only be passed across processes through Java IPC (Binder),
+// which means calls from Java come in on arbitrary threads. Hence the
+// static nature and the need for the client to register a callback with
+// the corresponding message loop.
+
+// Asynchronously sets the Surface. This can be called from any thread.
+// The Surface will be set to the proper thread based on the type. The
+// nature of primary_id and secondary_id depend on the type of surface
+// and are used to route the surface to the correct client.
+// This method will call release() on the jsurface object to release
+// all the resources. So after calling this method, the caller should
+// not use the jsurface object again.
+void SetSurfaceAsync(JNIEnv* env,
+                     jobject jsurface,
+                     content::SurfaceTexturePeer::SurfaceTextureTarget type,

[jam, 2012/06/11 20:13:17]

nit: no need for content::

[michaelbai, 2012/06/11 20:30:16]

Done.

+                     int primary_id,
+                     int secondary_id,
+                     base::WaitableEvent* completion);
+
+void ReleaseSurface(jobject surface);
+
+typedef base::Callback<void(int, int, ANativeWindow*, base::WaitableEvent*)>
+                            NativeWindowCallback;
+void RegisterNativeWindowCallback(base::MessageLoopProxy* loop,
+                                  NativeWindowCallback& callback);
+
+typedef base::Callback<void(int, int, jobject surface)> VideoSurfaceCallback;
+void RegisterVideoSurfaceCallback(base::MessageLoopProxy* loop,
+                                  VideoSurfaceCallback& callback);
+
+bool RegisterSurfaceCallback(JNIEnv* env);
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_ANDROID_SURFACE_CALLBACK_H_