Enable VP9 support for Widevine key system.

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 0982dfd7b2beb256294851bb5bbe2d5765d83cf2..40a73b473f1fddfd70cc6a19d97fdeea569bded4 100644
--- a/chrome/browser/media/encrypted_media_browsertest.cc
+++ b/chrome/browser/media/encrypted_media_browsertest.cc
@@ -531,14 +531,6 @@ IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VideoClearAudio_WebM) {
 }
 
 IN_PROC_BROWSER_TEST_P(EncryptedMediaTest, Playback_VP9Video_WebM) {
-#if defined(WIDEVINE_CDM_AVAILABLE)
-  // TODO(xhwang): Remove this once VP9 is supported by Widevine CDM.
-  // See http://crbug.com/361318.
-  if (IsWidevine(CurrentKeySystem())) {
-    VLOG(0) << "VP9 not supported in Widevine CDM.";
-    return;
-  }
-#endif
   TestSimplePlayback("bear-320x240-v-vp9-enc_v.webm", kWebMVP9VideoOnly);
 }