diff -up chromium-46.0.2490.71/media/filters/ffmpeg_glue.cc.mga5 chromium-46.0.2490.71/media/filters/ffmpeg_glue.cc
--- chromium-46.0.2490.71/media/filters/ffmpeg_glue.cc.mga5	2015-10-13 21:04:33.000000000 +0200
+++ chromium-46.0.2490.71/media/filters/ffmpeg_glue.cc	2015-10-22 02:06:15.760000000 +0200
@@ -146,9 +146,6 @@ FFmpegGlue::FFmpegGlue(FFmpegURLProtocol
   // early error state doesn't cause FFmpeg to free our resources in error.
   format_context_->flags |= AVFMT_FLAG_CUSTOM_IO;
 
-  // Enable fast, but inaccurate seeks for MP3.
-  format_context_->flags |= AVFMT_FLAG_FAST_SEEK;
-
   format_context_->pb = avio_context_.get();
 }