Revert of Forward the number of skipped frames by the OS in audio playout.

media/audio/audio_parameters.h

Index: media/audio/audio_parameters.h
diff --git a/media/audio/audio_parameters.h b/media/audio/audio_parameters.h
index f93688104d7a05b848942142f953bd7603b3b1a2..c59dd30885e36672cde8eb6e1a2086ac3e94a2ee 100644
--- a/media/audio/audio_parameters.h
+++ b/media/audio/audio_parameters.h
@@ -19,27 +19,24 @@
 namespace media {
 
 // Use a struct-in-struct approach to ensure that we can calculate the required
-// size as sizeof(Audio{Input,Output}BufferParameters) + #(bytes in audio
-// buffer) without using packing. Also align Audio{Input,Output}BufferParameters
-// instead of in Audio{Input,Output}Buffer to be able to calculate size like so.
-// Use a macro for the alignment value that's the same as
-// AudioBus::kChannelAlignment, since MSVC doesn't accept the latter to be used.
+// size as sizeof(AudioInputBufferParameters) + #(bytes in audio buffer) without
+// using packing. Also align AudioInputBufferParameters instead of in
+// AudioInputBuffer to be able to calculate size like so. Use a macro for the
+// alignment value that's the same as AudioBus::kChannelAlignment, since MSVC
+// doesn't accept the latter to be used.
 #if defined(OS_WIN)
 #pragma warning(push)
 #pragma warning(disable: 4324)  // Disable warning for added padding.
 #endif
 #define PARAMETERS_ALIGNMENT 16
 static_assert(AudioBus::kChannelAlignment == PARAMETERS_ALIGNMENT,
-              "Audio buffer parameters struct alignment not same as AudioBus");
+              "AudioInputBufferParameters alignment not same as AudioBus");
 struct MEDIA_EXPORT ALIGNAS(PARAMETERS_ALIGNMENT) AudioInputBufferParameters {
   double volume;
-  uint32_t size;
+  uint32 size;
   uint32_t hardware_delay_bytes;
   uint32_t id;
   bool key_pressed;
-};
-struct MEDIA_EXPORT ALIGNAS(PARAMETERS_ALIGNMENT) AudioOutputBufferParameters {
-  uint32_t frames_skipped;
 };
 #undef PARAMETERS_ALIGNMENT
 #if defined(OS_WIN)
@@ -50,17 +47,9 @@
                       AudioBus::kChannelAlignment ==
                   0,
               "AudioInputBufferParameters not aligned");
-static_assert(sizeof(AudioOutputBufferParameters) %
-                      AudioBus::kChannelAlignment ==
-                  0,
-              "AudioOutputBufferParameters not aligned");
 
 struct MEDIA_EXPORT AudioInputBuffer {
   AudioInputBufferParameters params;
-  int8 audio[1];
-};
-struct MEDIA_EXPORT AudioOutputBuffer {
-  AudioOutputBufferParameters params;
   int8 audio[1];
 };