web platform tests for new networkPriority encoding parameter.

Bug: webrtc:5008
Change-Id: I867b0811917f0356f05417f6186124d92c3a0622
Reviewed-on: https://chromium-review.googlesource.com/c/1357515
Commit-Queue: Tim Haloun <thaloun@chromium.org>
Reviewed-by: Florent Castelli <orphis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614228}

webrtc/RTCRtpParameters-encodings.html

@@ -48,6 +48,7 @@
         RTCDtxStatus        dtx;
         boolean             active;
         RTCPriorityType     priority;
+        RTCPriorityType     networkPriority;
         unsigned long       ptime;
         unsigned long       maxBitrate;
         double              maxFramerate;
@@ -146,6 +147,7 @@
         dtx: 'enabled',
         active: false,
         priority: 'low',
+        networkPriority: 'low',
         ptime: 5,
         maxBitrate: 8,
         maxFramerate: 25,
@@ -161,6 +163,7 @@
     assert_equals(encoding.dtx, 'enabled');
     assert_equals(encoding.active, false);
     assert_equals(encoding.priority, 'low');
+    assert_equals(encoding.networkPriority, 'low');
     assert_equals(encoding.ptime, 5);
     assert_equals(encoding.maxBitrate, 8);
     assert_equals(encoding.maxFramerate, 25);
@@ -339,6 +342,9 @@
   test_modified_encoding('audio', 'priority', 'very-low', 'high',
     'setParameters() with modified encoding.priority should succeed');
 
+  test_modified_encoding('audio', 'networkPriority', 'very-low', 'high',
+    'setParameters() with modified encoding.networkPriority should succeed');
+
   test_modified_encoding('audio', 'ptime', 2, 4,
     'setParameters() with modified encoding.ptime should succeed');
 

webrtc/RTCRtpParameters-helper.js

@@ -142,6 +142,7 @@ function validateRtpParameters(param) {
     RTCDtxStatus        dtx;
     boolean             active;
     RTCPriorityType     priority;
+    RTCPriorityType     networkPriority;
     unsigned long       ptime;
     unsigned long       maxBitrate;
     double              maxFramerate;
@@ -171,6 +172,8 @@ function validateEncodingParameters(encoding) {
   assert_optional_boolean_field(encoding, 'active');
   assert_optional_enum_field(encoding, 'priority',
     ['very-low', 'low', 'medium', 'high']);
+  assert_optional_enum_field(encoding, 'networkPriority',
+    ['very-low', 'low', 'medium', 'high']);
 
   assert_optional_unsigned_int_field(encoding, 'ptime');
   assert_optional_unsigned_int_field(encoding, 'maxBitrate');