Add browser test for vp9 subsample encrypted content

chrome/browser/media/encrypted_media_browsertest.cc

Index: chrome/browser/media/encrypted_media_browsertest.cc
diff --git a/chrome/browser/media/encrypted_media_browsertest.cc b/chrome/browser/media/encrypted_media_browsertest.cc
index 7e54db9a46786f62572f16e9c7694c9fdbbc1a3f..4ef90d7cdfcff8cc5b242a5cf0d1b01bf8fcf75d 100644
--- a/chrome/browser/media/encrypted_media_browsertest.cc
+++ b/chrome/browser/media/encrypted_media_browsertest.cc
@@ -482,8 +482,14 @@ IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VideoClearAudio_WebM) {
   TestSimplePlayback("bear-320x240-av_enc-v.webm", kWebMVorbisAudioVP8Video);
 }
 
-IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VP9Video_WebM) {
-  TestSimplePlayback("bear-320x240-v-vp9_enc-v.webm", kWebMVP9VideoOnly);
+IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VP9Video_WebM_Fullsample) {
+  TestSimplePlayback("bear-320x240-v-vp9_fullsample_enc-v.webm",
+                     kWebMVP9VideoOnly);
+}
+
+IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VP9Video_WebM_Subsample) {
+  TestSimplePlayback("bear-320x240-v-vp9_subsample_enc-v.webm",
+                     kWebMVP9VideoOnly);
 }
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_AudioOnly_WebM_Opus) {