EME: Fail requestMediaKeySystemAccess if no capabilities specified

android_webview/javatests/src/org/chromium/android_webview/test/KeySystemTest.java

Index: android_webview/javatests/src/org/chromium/android_webview/test/KeySystemTest.java
diff --git a/android_webview/javatests/src/org/chromium/android_webview/test/KeySystemTest.java b/android_webview/javatests/src/org/chromium/android_webview/test/KeySystemTest.java
index 69e1ce416fd7a642bb954a7347a7c4ecbafcc148..2db7d592cc164ce206ddfcc985ebac8b7a37dd65 100644
--- a/android_webview/javatests/src/org/chromium/android_webview/test/KeySystemTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/KeySystemTest.java
@@ -64,8 +64,13 @@ public class KeySystemTest extends AwTestBase {
                 + "  result = error.name;"
                 + "}"
                 + "function isKeySystemSupported(keySystem) {"
-                + "  navigator.requestMediaKeySystemAccess(keySystem, [{}]).then("
-                + "      success, failure);"
+                + "  navigator.requestMediaKeySystemAccess("
+                + "     keySystem, "
+                + "     [{audioCapabilities:"
+                + "         [{contentType: 'audio/webm; codec=\"vorbis\"'}]}, "
+                + "      {videoCapabilities:"
+                + "         [{contentType: 'video/mp4; codecs=\"avc1.4D000C\"'}]}])"
+                + "  .then(success, failure);"

[xhwang, 2017/02/02 18:31:20]

Please add a comment why we need two here. I'll be very hard for figure it out
again later.

[jrummell, 2017/02/02 20:03:24]

Done.

                 + "}"
                 + "function areProprietaryCodecsSupported() {"
                 + "  var video = document.createElement('video');"