Implementation of 'AudioContext.getOutputTimestamp' method

third_party/WebKit/Source/platform/audio/AudioDestination.h

Index: third_party/WebKit/Source/platform/audio/AudioDestination.h
diff --git a/third_party/WebKit/Source/platform/audio/AudioDestination.h b/third_party/WebKit/Source/platform/audio/AudioDestination.h
index dda3527f57476e3697025958418f64c07573959d..a62c38a50fe998f4f87b123016094b928ef92ddb 100644
--- a/third_party/WebKit/Source/platform/audio/AudioDestination.h
+++ b/third_party/WebKit/Source/platform/audio/AudioDestination.h
@@ -82,7 +82,10 @@ class PLATFORM_EXPORT AudioDestination : public WebAudioDevice::RenderCallback,
   // WebAudioDevice::RenderCallback
   void render(const WebVector<float*>& sourceData,
               const WebVector<float*>& audioData,
-              size_t numberOfFrames) override;
+              size_t numberOfFrames,
+              double delay,
+              double delayTimestamp,
+              size_t priorFramesSkipped) override;

[Raymond Toy, 2016/11/04 17:51:40]

Can we document what these three parameters really mean?

[Mikhail, 2016/11/28 15:15:59]

Done.

 
   // AudioSourceProvider
   void provideInput(AudioBus*, size_t framesToProcess) override;
@@ -109,6 +112,10 @@ class PLATFORM_EXPORT AudioDestination : public WebAudioDevice::RenderCallback,
 
   std::unique_ptr<AudioFIFO> m_inputFifo;
   std::unique_ptr<AudioPullFIFO> m_fifo;
+
+  size_t m_framesElapsed;
+  AudioIOPosition m_outputPosition;
+  base::TimeTicks m_outputPositionReceivedTimestamp;
 };
 
 }  // namespace blink