List sync points to wait on in AsyncFlush message

gpu/command_buffer/service/command_buffer_service.cc

Index: gpu/command_buffer/service/command_buffer_service.cc
diff --git a/gpu/command_buffer/service/command_buffer_service.cc b/gpu/command_buffer/service/command_buffer_service.cc
index 1453a0acfb88660284faaf3758382bb27be4a912..e5e68763ef090707ade1e8b509cc0faac4a595bb 100644
--- a/gpu/command_buffer/service/command_buffer_service.cc
+++ b/gpu/command_buffer/service/command_buffer_service.cc
@@ -67,7 +67,8 @@ void CommandBufferService::WaitForGetOffsetInRange(int32 start, int32 end) {
   DCHECK(error_ != error::kNoError || InRange(start, end, get_offset_));
 }
 
-void CommandBufferService::Flush(int32 put_offset) {
+void CommandBufferService::Flush(int32 put_offset,
+                                 const std::vector<uint32>& sync_points) {
   if (put_offset < 0 || put_offset > num_entries_) {
     error_ = gpu::error::kOutOfBounds;
     return;