Implementation of 'AudioContext.getOutputTimestamp' method

media/audio/audio_output_device.cc

Index: media/audio/audio_output_device.cc
diff --git a/media/audio/audio_output_device.cc b/media/audio/audio_output_device.cc
index a3effebfb43af118500197a6eed9a48093563f7d..5d1389accc7dd38243d9c7dcc2c3d22b0a6aa09a 100644
--- a/media/audio/audio_output_device.cc
+++ b/media/audio/audio_output_device.cc
@@ -37,7 +37,7 @@ class AudioOutputDevice::AudioThreadCallback
   void MapSharedMemory() override;
 
   // Called whenever we receive notifications about pending data.
-  void Process(uint32_t pending_data) override;
+  void Process(uint32_t pending_data, const AudioTimestamp& timestamp) override;
 
  private:
   AudioRendererSink::RenderCallback* render_callback_;
@@ -417,7 +417,9 @@ void AudioOutputDevice::AudioThreadCallback::MapSharedMemory() {
 }
 
 // Called whenever we receive notifications about pending data.
-void AudioOutputDevice::AudioThreadCallback::Process(uint32_t pending_data) {
+void AudioOutputDevice::AudioThreadCallback::Process(
+    uint32_t pending_data,
+    const AudioTimestamp& timestamp) {
   // Convert the number of pending bytes in the render buffer into frames.
   double frames_delayed = static_cast<double>(pending_data) / bytes_per_frame_;
 
@@ -447,7 +449,7 @@ void AudioOutputDevice::AudioThreadCallback::Process(uint32_t pending_data) {
   // the shared memory the Render() call is writing directly into the shared
   // memory.
   render_callback_->Render(output_bus_.get(), std::round(frames_delayed),
-                           frames_skipped);
+                           frames_skipped, timestamp);
 }
 
 }  // namespace media