List sync points to wait on in AsyncFlush message

content/common/gpu/gpu_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.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include <string>
 #include <vector>
 
@@ skipping 484 matching lines @@
 // Wait until the get offset is in a specific range, inclusive.
 IPC_SYNC_MESSAGE_ROUTED2_1(GpuCommandBufferMsg_WaitForGetOffsetInRange,
                            int32 /* start */,
                            int32 /* end */,
                            gpu::CommandBuffer::State /* state */)
 
 // Asynchronously synchronize the put and get offsets of both processes.
 // Caller passes its current put offset. Current state (including get offset)
 // is returned in shared memory. The input latency info for the current
 // frame is also sent to the GPU process.
-IPC_MESSAGE_ROUTED3(GpuCommandBufferMsg_AsyncFlush,
+IPC_MESSAGE_ROUTED4(GpuCommandBufferMsg_AsyncFlush,
                     int32 /* put_offset */,
                     uint32 /* flush_count */,
+                    std::vector<uint32> /* sync_points_waited_on */,
                     std::vector<ui::LatencyInfo> /* latency_info */)
 
 // Asynchronously process any commands known to the GPU process. This is only
 // used in the event that a channel is unscheduled and needs to be flushed
 // again to process any commands issued subsequent to unscheduling. The GPU
 // process actually sends it (deferred) to itself.
 IPC_MESSAGE_ROUTED0(GpuCommandBufferMsg_Rescheduled)
 
 // Sent by the GPU process to display messages in the console.
 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_ConsoleMsg,
@@ skipping 214 matching lines @@
                     int32 /* bitstream_buffer_id */,
                     uint32 /* payload_size */,
                     bool /* key_frame */)
 
 // Report error condition.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoEncoderHostMsg_NotifyError,
                     media::VideoEncodeAccelerator::Error /* error */)
 
 // Send destroy request to the encoder.
 IPC_MESSAGE_ROUTED0(AcceleratedVideoEncoderMsg_Destroy)