Implementation of 'AudioContext.getOutputTimestamp' method

media/audio/audio_device_thread.cc

Index: media/audio/audio_device_thread.cc
diff --git a/media/audio/audio_device_thread.cc b/media/audio/audio_device_thread.cc
index 20874599e68f5f7cfddeff0022291e64aa718b6c..048c9a1a1066702d772c620b7f762a8af0468ea3 100644
--- a/media/audio/audio_device_thread.cc
+++ b/media/audio/audio_device_thread.cc
@@ -170,9 +170,9 @@ void AudioDeviceThread::Thread::ThreadMain() {
 void AudioDeviceThread::Thread::Run() {
   uint32_t buffer_index = 0;
   while (true) {
-    uint32_t pending_data = 0;
-    size_t bytes_read = socket_.Receive(&pending_data, sizeof(pending_data));
-    if (bytes_read != sizeof(pending_data))
+    Packet packet = {0, AudioTimestamp()};
+    size_t bytes_read = socket_.Receive(&packet, sizeof(packet));
+    if (bytes_read != sizeof(packet))
       break;
 
     // std::numeric_limits<uint32_t>::max() is a special signal which is
@@ -183,10 +183,10 @@ void AudioDeviceThread::Thread::Run() {
     // the buffer index if |synchronized_buffers_| is true though.
     //
     // See comments in AudioOutputController::DoPause() for details on why.
-    if (pending_data != std::numeric_limits<uint32_t>::max()) {
+    if (packet.pending_data != std::numeric_limits<uint32_t>::max()) {
       base::AutoLock auto_lock(callback_lock_);
       if (callback_)
-        callback_->Process(pending_data);
+        callback_->Process(packet.pending_data, packet.timestamp);
     }
 
     // The usage of |synchronized_buffers_| differs between input and output