Update browser tests to support upcoming EME parameter type changes.

chrome/test/data/media/eme_player_js/utils.js

Index: chrome/test/data/media/eme_player_js/utils.js
diff --git a/chrome/test/data/media/eme_player_js/utils.js b/chrome/test/data/media/eme_player_js/utils.js
index e664593e8e56c6536a090817d4fc6dccc41ccb01..3c5e9525c2ab9023985a846bbc71f4324f572db2 100644
--- a/chrome/test/data/media/eme_player_js/utils.js
+++ b/chrome/test/data/media/eme_player_js/utils.js
@@ -30,11 +30,16 @@ Utils.convertToArray = function(input) {
 };
 
 Utils.convertToUint8Array = function(msg) {
-  var ans = new Uint8Array(msg.length);
-  for (var i = 0; i < msg.length; i++) {
-    ans[i] = msg.charCodeAt(i);
+  if (typeof msg == 'string') {
+    var ans = new Uint8Array(msg.length);
+    for (var i = 0; i < msg.length; i++) {
+      ans[i] = msg.charCodeAt(i);
+    }
+    return ans;
   }
-  return ans;
+  // Assume it is ArrayBuffer or ArrayBufferView. If it already a Uint8Array,
+  // this will just make a copy.

[ddorwin, 2014/07/20 22:35:05]

... of the view.
right?

Change the last sentence in the  description too.

[jrummell, 2014/07/23 22:30:05]

Done.

+  return new Uint8Array(msg);
 };
 
 Utils.createJWKData = function(keyId, key) {
@@ -150,7 +155,7 @@ Utils.getHexString = function(uintArray) {
 };
 
 Utils.getInitDataFromMessage = function(message, mediaType) {
-  var initData = message.message;
+  var initData = Utils.convertToUint8Array(message.message);

[ddorwin, 2014/07/20 22:35:05]

This will probably need to change when we update Clear Key format, but it's good
that it's hidden

[jrummell, 2014/07/23 22:30:06]

Acknowledged.

   if (mediaType.indexOf('mp4') != -1) {
     // Temporary hack for Clear Key in v0.1.
     // If content uses mp4, then message.message is PSSH data. Instead of