EME: Update tests so 'audioCapabilities' always provided

third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeys.html

Index: third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeys.html
diff --git a/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeys.html b/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeys.html
index 39f923ccfff7b55ca101fc8ea78dc09991d48f9e..e2eac1df6cafbc976594514b5595c53d1ae14807 100644
--- a/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeys.html
+++ b/third_party/WebKit/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeys.html
@@ -12,7 +12,9 @@
             async_test(function(test)
             {
                 // Create a MediaKeys object and free immediately.
-                navigator.requestMediaKeySystemAccess('org.w3.clearkey', [{}]).then(function(access) {
+                getSupportedInitDataType().then(function(initDataType) {
+                    return requestClearKeySystemAccessForInitType(initDataType);
+                }).then(function(access) {
                     return access.createMediaKeys();
                 }).then(function(result) {
                     // Do nothing with the created object
@@ -30,7 +32,9 @@
             async_test(function(test)
             {
                 var mediaKeys;
-                navigator.requestMediaKeySystemAccess('org.w3.clearkey', [{}]).then(function(access) {
+                getSupportedInitDataType().then(function(initDataType) {
+                    return requestClearKeySystemAccessForInitType(initDataType);
+                }).then(function(access) {
                     return access.createMediaKeys();
                 }).then(function(result) {
                     mediaKeys = result;