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 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #ifndef XRE_EVENTTRACER_H_

 #define XRE_EVENTTRACER_H_

 namespace mozilla {

 // Create a thread that will fire events back at the

 // main thread to measure responsiveness. Return true

 // if the thread was created successfully.

 //   aLog If the tracing results should be printed to

 //        the console.

 bool InitEventTracing(bool aLog);

 // Signal the background thread to stop, and join it.

 // Must be called from the same thread that called InitEventTracing.

 void ShutdownEventTracing();

 }  // namespace mozilla

 #endif /* XRE_EVENTTRACER_H_ */