EME: Update tests so 'audioCapabilities' always provided

third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-playback-setmediakeys-before-src.html

Index: third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-playback-setmediakeys-before-src.html
diff --git a/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-playback-setmediakeys-before-src.html b/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-playback-setmediakeys-before-src.html
index 5ad588ae0d71cb1e9a0c9977eb247a636dcdf2fb..6aa4dd84b419dd62f4d312a1803b26c9d8e47e4f 100644
--- a/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-playback-setmediakeys-before-src.html
+++ b/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-playback-setmediakeys-before-src.html
@@ -13,6 +13,7 @@
             async_test(function(test)
             {
                 var video = document.getElementById('testVideo');
+                var content = '../content/test-encrypted.webm';
                 var isUpdatePromiseResolved = false;
                 var encryptedEventCount = 0;
 
@@ -71,7 +72,7 @@
                     test.done();
                 }
 
-                navigator.requestMediaKeySystemAccess('org.w3.clearkey', [{}]).then(function(access) {
+                navigator.requestMediaKeySystemAccess('org.w3.clearkey', getConfigurationForFile(content)).then(function(access) {
                     return access.createMediaKeys();
                 }).then(function(mediaKeys) {
 
@@ -80,7 +81,7 @@
 
                     return video.setMediaKeys(mediaKeys);
                 }).then(function(result) {
-                    video.src = '../content/test-encrypted.webm';
+                    video.src = content;
                     video.play();
                 }).catch(function(error) {
                     forceTestFailureFromPromise(test, error);