Bug 1678352 - Don't GoFaster in AudioInputTrackDisabling. r=pehrsons

In retrospect this is too dependent on scheduling. We can and should do
something better. This will be easier to implement once I implement real offline
support for suspend/resume for offline MediaTrackGraph for OfflineAudioContext I
think.

Differential Revision: https://phabricator.services.mozilla.com/D123730

dom/media/gtest/TestAudioTrackGraph.cpp

@@ -515,7 +515,6 @@ float rmsf32(AudioDataValue* aSamples, uint32_t aChannels, uint32_t aFrames) {
   return sqrt(rms);
 }
 
-#  ifndef WIN32  // failure on windows10x32
 TEST(TestAudioTrackGraph, AudioInputTrackDisabling)
 {
   MockCubeb* cubeb = new MockCubeb();
@@ -554,19 +553,12 @@ TEST(TestAudioTrackGraph, AudioInputTrackDisabling)
 
   stream->SetOutputRecordingEnabled(true);
 
-  // Wait for a second worth of audio data. GoFaster is dispatched through a
-  // ControlMessage so that it is called in the first audio driver iteration.
-  // Otherwise the audio driver might be going very fast while the fallback
-  // system clock driver is still in an iteration.
-  DispatchFunction([&] {
-    inputTrack->GraphImpl()->AppendMessage(MakeUnique<GoFaster>(cubeb));
-  });
+  // Wait for a second worth of audio data.
   uint32_t totalFrames = 0;
   WaitUntil(stream->FramesProcessedEvent(), [&](uint32_t aFrames) {
     totalFrames += aFrames;
     return totalFrames > static_cast<uint32_t>(graph->GraphRate());
   });
-  cubeb->DontGoFaster();
 
   const uint32_t ITERATION_COUNT = 5;
   uint32_t iterations = ITERATION_COUNT;
@@ -581,7 +573,6 @@ TEST(TestAudioTrackGraph, AudioInputTrackDisabling)
       } else {
         currentMode = DisabledTrackMode::SILENCE_BLACK;
       }
-      inputTrack->GraphImpl()->AppendMessage(MakeUnique<GoFaster>(cubeb));
     });
 
     totalFrames = 0;
@@ -589,7 +580,6 @@ TEST(TestAudioTrackGraph, AudioInputTrackDisabling)
       totalFrames += aFrames;
       return totalFrames > static_cast<uint32_t>(graph->GraphRate());
     });
-    cubeb->DontGoFaster();
   }
 
   // Clean up.
@@ -632,7 +622,6 @@ TEST(TestAudioTrackGraph, AudioInputTrackDisabling)
     EXPECT_EQ(rmsf32(&(data[startIdx]), 2, rate / 10), 0.0);
   }
 }
-#  endif  // win32
 
 void TestCrossGraphPort(uint32_t aInputRate, uint32_t aOutputRate,
                         float aDriftFactor, uint32_t aBufferMs = 50) {