Implement IPCs and VideoCapture::Client interfaces for texture capture

content/common/media/video_capture_messages.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.
 
 #include "base/memory/shared_memory.h"
 #include "content/common/content_export.h"
 #include "content/common/media/video_capture.h"
 #include "content/public/common/common_param_traits.h"
+#include "gpu/command_buffer/common/mailbox_holder.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/video/capture/video_capture_types.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 #define IPC_MESSAGE_START VideoCaptureMsgStart
 
 IPC_ENUM_TRAITS(content::VideoCaptureState)
 
 IPC_STRUCT_TRAITS_BEGIN(media::VideoCaptureParams)
@@ skipping 20 matching lines @@
 // Tell the renderer process that it should release a buffer previously
 // allocated by VideoCaptureMsg_NewBuffer.
 IPC_MESSAGE_CONTROL2(VideoCaptureMsg_FreeBuffer,
                      int /* device id */,
                      int /* buffer_id */)
 
 // Tell the renderer process that a buffer is available from video capture.
 IPC_MESSAGE_CONTROL4(VideoCaptureMsg_BufferReady,
                      int /* device id */,
                      int /* buffer_id */,
-                     base::TimeTicks /* timestamp */,
-                     media::VideoCaptureFormat /* resolution */)
+                     media::VideoCaptureFormat /* format */,
+                     base::TimeTicks /* timestamp */)
+
+// Tell the renderer process that a texture mailbox buffer is available from
+// video capture.
+IPC_MESSAGE_CONTROL5(VideoCaptureMsg_MailboxBufferReady,
+                     int /* device_id */,
+                     int /* buffer_id */,
+                     gpu::MailboxHolder /* mailbox_holder */,
+                     media::VideoCaptureFormat /* format */,
+                     base::TimeTicks /* timestamp */)
 
 // Start a video capture as |device_id|, a new id picked by the renderer
 // process. The session to be started is determined by |params.session_id|.
 IPC_MESSAGE_CONTROL3(VideoCaptureHostMsg_Start,
                      int /* device_id */,
                      media::VideoCaptureSessionId, /* session_id */
                      media::VideoCaptureParams /* params */)
 
 // Pause the video capture specified by |device_id|.
 IPC_MESSAGE_CONTROL1(VideoCaptureHostMsg_Pause,
                      int /* device_id */)
 
 // Close the video capture specified by |device_id|.
 IPC_MESSAGE_CONTROL1(VideoCaptureHostMsg_Stop,
                      int /* device_id */)
 
 // Tell the browser process that the renderer has finished reading from
 // a buffer previously delivered by VideoCaptureMsg_BufferReady.
-IPC_MESSAGE_CONTROL2(VideoCaptureHostMsg_BufferReady,
+IPC_MESSAGE_CONTROL3(VideoCaptureHostMsg_BufferReady,
                      int /* device_id */,
-                     int /* buffer_id */)
+                     int /* buffer_id */,
+                     uint32 /* syncpoint */)