Bug 1204419: P3. Remove now unused MediaDecoderReader functions. r=cpearce

dom/media/MediaDecoderReader.h

@@ -280,7 +280,6 @@ public:
 
   // Notify the reader that data from the resource was evicted (MediaSource only)
   virtual void NotifyDataRemoved() {}
-  virtual int64_t GetEvictionOffset(double aTime) { return -1; }
 
   virtual MediaQueue<AudioData>& AudioQueue() { return mAudioQueue; }
   virtual MediaQueue<VideoData>& VideoQueue() { return mVideoQueue; }

dom/media/MediaFormatReader.cpp

@@ -1585,22 +1585,6 @@ MediaFormatReader::OnAudioSeekCompleted(media::TimeUnit aTime)
   mSeekPromise.Resolve(aTime.ToMicroseconds(), __func__);
 }
 
-int64_t
-MediaFormatReader::GetEvictionOffset(double aTime)
-{
-  int64_t audioOffset;
-  int64_t videoOffset;
-  if (NS_IsMainThread()) {
-    audioOffset = HasAudio() ? mAudioTrackDemuxer->GetEvictionOffset(media::TimeUnit::FromSeconds(aTime)) : INT64_MAX;
-    videoOffset = HasVideo() ? mVideoTrackDemuxer->GetEvictionOffset(media::TimeUnit::FromSeconds(aTime)) : INT64_MAX;
-  } else {
-    MOZ_ASSERT(OnTaskQueue());
-    audioOffset = HasAudio() ? mAudio.mTrackDemuxer->GetEvictionOffset(media::TimeUnit::FromSeconds(aTime)) : INT64_MAX;
-    videoOffset = HasVideo() ? mVideo.mTrackDemuxer->GetEvictionOffset(media::TimeUnit::FromSeconds(aTime)) : INT64_MAX;
-  }
-  return std::min(audioOffset, videoOffset);
-}
-
 media::TimeIntervals
 MediaFormatReader::GetBuffered()
 {

dom/media/MediaFormatReader.h

@@ -61,7 +61,6 @@ public:
     return mSeekable;
   }
 
-  int64_t GetEvictionOffset(double aTime) override;
 protected:
   void NotifyDataArrivedInternal(uint32_t aLength, int64_t aOffset) override;
 public:

dom/media/webm/WebMReader.cpp

@@ -849,16 +849,6 @@ void WebMReader::NotifyDataArrivedInternal(uint32_t aLength, int64_t aOffset)
   mBufferedState->NotifyDataArrived(bytes->Elements(), aLength, aOffset);
 }
 
-int64_t WebMReader::GetEvictionOffset(double aTime)
-{
-  int64_t offset;
-  if (!mBufferedState->GetOffsetForTime(aTime * NS_PER_S, &offset)) {
-    return -1;
-  }
-
-  return offset;
-}
-
 int WebMReader::GetVideoCodec()
 {
   return mVideoCodec;

dom/media/webm/WebMReader.h

@@ -98,7 +98,6 @@ public:
   Seek(int64_t aTime, int64_t aEndTime) override;
 
   virtual media::TimeIntervals GetBuffered() override;
-  virtual int64_t GetEvictionOffset(double aTime) override;
 
   virtual bool IsMediaSeekable() override;