Deinline even more destructors.

media/filters/bitstream_converter.cc

Index: media/filters/bitstream_converter.cc
diff --git a/media/filters/bitstream_converter.cc b/media/filters/bitstream_converter.cc
index 45a19ab50e47b2a0f1cacd7345e271192ecc7b03..a64f2a9ce761edc9e7165c3982843fde7de6be22 100644
--- a/media/filters/bitstream_converter.cc
+++ b/media/filters/bitstream_converter.cc
@@ -9,6 +9,14 @@
 
 namespace media {
 
+bool IdentityBitstreamConverter::Initialize() {
+  return true;
+}
+
+bool IdentityBitstreamConverter::ConvertPacket(AVPacket* packet) {
+  return true;
+}
+
 FFmpegBitstreamConverter::FFmpegBitstreamConverter(
     const std::string& filter_name,
     AVCodecContext* stream_context)