Bug 1306477 - Adds a simple test to confirm WebM Subsample Encryption works r=cpearce

MozReview-Commit-ID: H0FSftU8nX4

--HG--
extra : rebase_source : 4ef6e8df85fe96c2031d90e34ad8eb6a01c4a641

dom/media/test/manifest.js

@@ -1422,6 +1422,30 @@ var gEMETests = [
     sessionCount:2,
     duration:1.60,
   },
+  {
+    name: "WebM vorbis audio & vp9 video clearkey with subsample encryption",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/webm; codecs=\"vorbis\"",
+        fragments:[ "sintel-short-clearkey-subsample-encrypted-audio.webm",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/webm; codecs=\"vp9\"",
+        fragments:[ "sintel-short-clearkey-subsample-encrypted-video.webm",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "2cdb0ed6119853e7850671c3e9906c3c" : "808B9ADAC384DE1E4F56140F4AD76194",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:2.0,
+  },
 ];
 
 var gEMENonMSEFailTests = [

dom/media/test/mochitest.ini

@@ -546,6 +546,10 @@ support-files =
   short-cenc.mp4
   sine.webm
   sine.webm^headers^
+  sintel-short-clearkey-subsample-encrypted-audio.webm
+  sintel-short-clearkey-subsample-encrypted-audio.webm^headers^
+  sintel-short-clearkey-subsample-encrypted-video.webm
+  sintel-short-clearkey-subsample-encrypted-video.webm^headers^
   short.mp4
   short.mp4^headers^
   short-audio-fragmented-cenc-without-pssh.mp4

dom/media/test/sintel-short-clearkey-subsample-encrypted-audio.webm^headers^

@@ -0,0 +1 @@
+Cache-Control: no-store

dom/media/test/sintel-short-clearkey-subsample-encrypted-video.webm^headers^

@@ -0,0 +1 @@
+Cache-Control: no-store