Index: chromeos/trace/arc_trace_agent.h |
diff --git a/chromeos/trace/arc_trace_agent.h b/chromeos/trace/arc_trace_agent.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..f107dd4520e63b0535df11e53eec5f6a42ae3ba6 |
--- /dev/null |
+++ b/chromeos/trace/arc_trace_agent.h |
@@ -0,0 +1,47 @@ |
+// Copyright 2017 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 CHROMEOS_TRACE_ARC_TRACE_AGENT_H_ |
+#define CHROMEOS_TRACE_ARC_TRACE_AGENT_H_ |
+ |
+#include <string> |
+ |
+#include "base/callback.h" |
+#include "base/files/scoped_file.h" |
+#include "base/trace_event/trace_event.h" |
+#include "base/trace_event/tracing_agent.h" |
+#include "chromeos/chromeos_export.h" |
+ |
+namespace chromeos { |
+ |
+// A wrapper for controlling tracing in ARC container. |
+class CHROMEOS_EXPORT ArcTraceAgent : public base::trace_event::TracingAgent { |
+ public: |
+ class Delegate { |
+ public: |
+ using StartTracingCallback = base::Callback<void(bool)>; |
+ using StopTracingCallback = base::Callback<void(const std::string&)>; |
+ |
+ virtual ~Delegate() = default; |
+ |
+ virtual void StartTracing( |
+ const base::trace_event::TraceConfig& trace_config, |
+ const StartTracingCallback& callback) = 0; |
+ |
+ virtual void StopTracing(const StopTracingCallback& callback) = 0; |
+ }; |
+ |
+ virtual ~ArcTraceAgent() = default; |
+ |
+ static ArcTraceAgent* GetInstance(); |
+ |
+ // Sets Delegate instance, which should implement the communication |
+ // using ARC bridge. If set to nullptr, calling of Start/StopAgentTracing |
+ // does nothing. |
+ virtual void SetDelegate(Delegate* delegate) = 0; |
+}; |
+ |
+} // namespace chromeos |
+ |
+#endif // CHROMEOS_TRACE_ARC_TRACE_AGENT_H_ |