Make Tracing Service not use outgoing InterfaceProvider, update conventions

services/tracing/trace_recorder_impl.cc

-// Copyright 2015 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 "services/tracing/trace_recorder_impl.h"
-
-#include <utility>
-
-namespace tracing {
-
-TraceRecorderImpl::TraceRecorderImpl(
-    mojo::InterfaceRequest<TraceRecorder> request,
-    TraceDataSink* sink)
-    : sink_(sink), binding_(this, std::move(request)) {}
-
-TraceRecorderImpl::~TraceRecorderImpl() {
-}
-
-void TraceRecorderImpl::TryRead() {
-  binding_.WaitForIncomingMethodCall(MojoDeadline(0));
-}
-
-mojo::Handle TraceRecorderImpl::TraceRecorderHandle() const {
-  return binding_.handle();
-}
-
-void TraceRecorderImpl::Record(const mojo::String& json) {
-  sink_->AddChunk(json.To<std::string>());
-}
-
-}  // namespace tracing