Implement support for vp9 in ISO-BMFF

media/base/key_systems.cc

Index: media/base/key_systems.cc
diff --git a/media/base/key_systems.cc b/media/base/key_systems.cc
index 6c2c8c2db31312b7074a4cc816a4ce3f9fb1a765..9e43e9b03a8e2a9c7e6ca84c9af848c11e9d0249 100644
--- a/media/base/key_systems.cc
+++ b/media/base/key_systems.cc
@@ -55,8 +55,10 @@ static NamedCodec kCodecStrings[] = {
     {"vorbis", EME_CODEC_WEBM_VORBIS},
     {"vp8", EME_CODEC_WEBM_VP8},
     {"vp8.0", EME_CODEC_WEBM_VP8},
+    {"vp08", EME_CODEC_MP4_VP8},

[sandersd (OOO until July 31), 2016/01/27 00:47:00]

These are only defined when USE_PROPRIETARY_CODECS is set.

[kqyang, 2016/01/29 00:34:16]

Good catch. Done.

     {"vp9", EME_CODEC_WEBM_VP9},
     {"vp9.0", EME_CODEC_WEBM_VP9},
+    {"vp09", EME_CODEC_MP4_VP9},

[ddorwin, 2016/01/27 01:39:15]

Just to confirm, is "vp0x" the value being used in the spec? I guess to be a
four-character value.

[kqyang, 2016/01/29 00:34:16]

Correct. 

 #if defined(USE_PROPRIETARY_CODECS)
     {"mp4a", EME_CODEC_MP4_AAC},
     {"avc1", EME_CODEC_MP4_AVC1},