SequenceBound: migrate from Post() to AsyncCall() in tracing classes.

Bug: 1140588
Change-Id: Ib4429dd024d2571d574dcbd63d84dca6ec90e10a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2488082Reviewed-by: Eric Seckler <eseckler@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#819518}

content/browser/tracing/perfetto_file_tracer.cc

@@ -166,8 +166,8 @@ void PerfettoFileTracer::ReadBuffers() {
           },
           base::Unretained(this), has_been_disabled_));
 
-  background_drainer_.Post(FROM_HERE, &BackgroundDrainer::StartDrain,
-                           std::move(data_pipe.consumer_handle));
+  background_drainer_.AsyncCall(&BackgroundDrainer::StartDrain)
+      .WithArgs(std::move(data_pipe.consumer_handle));
 }
 
 void PerfettoFileTracer::OnTracingSessionEnded() {

services/tracing/perfetto/consumer_host.cc

@@ -495,8 +495,8 @@ void ConsumerHost::TracingSession::OnJSONTraceData(std::string json,
                                                    bool has_more) {
   auto slice = std::make_unique<StreamWriter::Slice>();
   slice->swap(json);
-  read_buffers_stream_writer_.Post(FROM_HERE, &StreamWriter::WriteToStream,
-                                   std::move(slice), has_more);
+  read_buffers_stream_writer_.AsyncCall(&StreamWriter::WriteToStream)
+      .WithArgs(std::move(slice), has_more);
 
   if (!has_more) {
     read_buffers_stream_writer_.Reset();
@@ -559,8 +559,8 @@ void ConsumerHost::TracingSession::OnTraceData(
       chunk->append(static_cast<const char*>(slice.start), slice.size);
     }
   }
-  read_buffers_stream_writer_.Post(FROM_HERE, &StreamWriter::WriteToStream,
-                                   std::move(chunk), has_more);
+  read_buffers_stream_writer_.AsyncCall(&StreamWriter::WriteToStream)
+      .WithArgs(std::move(chunk), has_more);
   if (!has_more) {
     read_buffers_stream_writer_.Reset();
   }