Rename tracing interfaces.

services/tracing/trace_recorder_impl.h

+// 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.
+
+#ifndef SERVICES_TRACING_TRACE_RECORDER_IMPL_H_
+#define SERVICES_TRACING_TRACE_RECORDER_IMPL_H_
+
+#include "base/macros.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "mojo/public/cpp/bindings/string.h"
+#include "mojo/services/tracing/public/interfaces/tracing.mojom.h"
+#include "services/tracing/trace_data_sink.h"
+
+namespace tracing {
+
+class TraceRecorderImpl : public TraceRecorder {
+ public:
+  TraceRecorderImpl(mojo::InterfaceRequest<TraceRecorder> request,
+                    TraceDataSink* sink);
+  ~TraceRecorderImpl() override;
+
+  // TryRead attempts to read a single chunk from the TraceRecorder pipe if one
+  // is available and passes it to the TraceDataSink. Returns immediately if no
+  // chunk is available.
+  void TryRead();
+
+  // TraceRecorderHandle returns the handle value of the TraceRecorder
+  // binding which can be used to wait until chunks are available.
+  mojo::Handle TraceRecorderHandle() const;
+
+ private:
+  // tracing::TraceRecorder implementation.
+  void Record(const mojo::String& json) override;
+
+  TraceDataSink* sink_;
+  mojo::Binding<TraceRecorder> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(TraceRecorderImpl);
+};
+
+}  // namespace tracing
+
+#endif  // SERVICES_TRACING_TRACE_RECORDER_IMPL_H_