Add browser test for vp9 subsample encrypted content

chrome/browser/media/encrypted_media_browsertest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 464 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VideoOnly_WebM) {
   TestSimplePlayback("bear-320x240-v_enc-v.webm", kWebMVP8VideoOnly);
 }
 
 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) {
   TestSimplePlayback("bear-320x240-opus-a_enc-a.webm", kWebMOpusAudioOnly);
 }
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VideoAudio_WebM_Opus) {
   TestSimplePlayback("bear-320x240-opus-av_enc-av.webm",
                      kWebMOpusAudioVP9Video);
 }
@@ skipping 160 matching lines @@
 IN_PROC_BROWSER_TEST_F(ECKEncryptedMediaTest, LoadLoadableSession) {
   TestPlaybackCase(kExternalClearKeyKeySystem, kLoadableSession, kEnded);
 }
 
 IN_PROC_BROWSER_TEST_F(ECKEncryptedMediaTest, LoadUnknownSession) {
   TestPlaybackCase(kExternalClearKeyKeySystem, kUnknownSession,
                    kEmeSessionNotFound);
 }
 
 #endif  // defined(ENABLE_PEPPER_CDMS)