Update browser tests to support upcoming EME parameter type changes.

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

Index: chrome/test/data/media/eme_player_js/widevine_player.js
diff --git a/chrome/test/data/media/eme_player_js/widevine_player.js b/chrome/test/data/media/eme_player_js/widevine_player.js
index 11e8ec8607d8701544e1aff2ad5abfb875594636..95483ec12c44d24ffd0e9912bfc9d6d973f6f1ac 100644
--- a/chrome/test/data/media/eme_player_js/widevine_player.js
+++ b/chrome/test/data/media/eme_player_js/widevine_player.js
@@ -32,7 +32,10 @@ WidevinePlayer.prototype.onMessage = function(message) {
     }
 
   }
-  Utils.sendRequest('POST', 'arraybuffer', message.message,
-                    this.testConfig.licenseServerURL, onSuccess,
+  Utils.sendRequest('POST',
+                    'arraybuffer',
+                    Utils.convertToUint8Array(message.message),

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

I'm offline, so I can't see the rest. Does send request assume a ?Uint8Array? If
so, should it handle views too?

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

According to https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest,
send() accepts an ArrayBufferView, but not an ArrayBuffer (no longer accepted).
Since the message event returns an ArrayBuffer, it needs to be converted.

+                    this.testConfig.licenseServerURL,
+                    onSuccess,
                     this.testConfig.forceInvalidResponse);
 };