--- a/testing/web-platform/meta/webrtc/RTCPeerConnection-constructor.html.ini
+++ b/testing/web-platform/meta/webrtc/RTCPeerConnection-constructor.html.ini
@@ -19,23 +19,11 @@
     expected: FAIL
 
   [new RTCPeerConnection({ iceCandidatePoolSize: toNumberThrows })]
     expected: FAIL
 
   [new RTCPeerConnection({ certificates: [expiredCertificate\] })]
     expected: FAIL
 
-  [currentLocalDescription initial value]
-    expected: FAIL
-
-  [pendingLocalDescription initial value]
-    expected: FAIL
-
-  [currentRemoteDescription initial value]
-    expected: FAIL
-
-  [pendingRemoteDescription initial value]
-    expected: FAIL
-
   [connectionState initial value]
     expected: FAIL
 

--- a/testing/web-platform/meta/webrtc/RTCPeerConnection-idl.html.ini
+++ b/testing/web-platform/meta/webrtc/RTCPeerConnection-idl.html.ini
@@ -1,22 +1,10 @@
 [RTCPeerConnection-idl.html]
   type: testharness
-  [RTCPeerConnection interface: attribute currentLocalDescription]
-    expected: FAIL
-
-  [RTCPeerConnection interface: attribute pendingLocalDescription]
-    expected: FAIL
-
-  [RTCPeerConnection interface: attribute currentRemoteDescription]
-    expected: FAIL
-
-  [RTCPeerConnection interface: attribute pendingRemoteDescription]
-    expected: FAIL
-
   [RTCPeerConnection interface: operation setConfiguration(RTCConfiguration)]
     expected: FAIL
 
   [RTCPeerConnection interface: operation createOffer(RTCSessionDescriptionCallback,RTCPeerConnectionErrorCallback,RTCOfferOptions)]
     expected: FAIL
 
   [RTCPeerConnection interface: operation setLocalDescription(RTCSessionDescription,VoidFunction,RTCPeerConnectionErrorCallback)]
     expected: FAIL
@@ -34,28 +22,16 @@
     expected: FAIL
 
   [RTCPeerConnection interface: operation addTrack(MediaStreamTrack,MediaStream)]
     expected: FAIL
 
   [RTCPeerConnection interface: attribute dtmf]
     expected: FAIL
 
-  [RTCPeerConnection interface: pc must inherit property "currentLocalDescription" with the proper type (4)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: pc must inherit property "pendingLocalDescription" with the proper type (5)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: pc must inherit property "currentRemoteDescription" with the proper type (8)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: pc must inherit property "pendingRemoteDescription" with the proper type (9)]
-    expected: FAIL
-
   [RTCPeerConnection interface: pc must inherit property "signalingState" with the proper type (11)]
     expected: FAIL
 
   [RTCPeerConnection interface: pc must inherit property "iceGatheringState" with the proper type (12)]
     expected: FAIL
 
   [RTCPeerConnection interface: pc must inherit property "iceConnectionState" with the proper type (13)]
     expected: FAIL

--- a/testing/web-platform/meta/webrtc/RTCPeerConnection-setLocalDescription-answer.html.ini
+++ b/testing/web-platform/meta/webrtc/RTCPeerConnection-setLocalDescription-answer.html.ini
@@ -1,13 +1,10 @@
 [RTCPeerConnection-setLocalDescription-answer.html]
   type: testharness
-  [setLocalDescription() with valid answer should succeed]
-    expected: FAIL
-
   [setLocalDescription() with type answer and null sdp should use lastAnswer generated from createAnswer]
     expected: FAIL
 
   [setLocalDescription() with answer not created by own createAnswer() should reject with InvalidModificationError]
     expected: FAIL
 
   [Calling setLocalDescription(answer) from stable state should reject with InvalidStateError]
     expected: FAIL

--- a/testing/web-platform/meta/webrtc/RTCPeerConnection-setLocalDescription-offer.html.ini
+++ b/testing/web-platform/meta/webrtc/RTCPeerConnection-setLocalDescription-offer.html.ini
@@ -1,13 +1,10 @@
 [RTCPeerConnection-setLocalDescription-offer.html]
   type: testharness
-  [setLocalDescription with valid offer should succeed]
-    expected: FAIL
-
   [setLocalDescription with type offer and null sdp should use lastOffer generated from createOffer]
     expected: FAIL
 
   [setLocalDescription() with offer not created by own createOffer() should reject with InvalidModificationError]
     expected: FAIL
 
   [Set created offer other than last offer should reject with InvalidModificationError]
     expected: FAIL

--- a/testing/web-platform/meta/webrtc/RTCPeerConnection-setLocalDescription.html.ini
+++ b/testing/web-platform/meta/webrtc/RTCPeerConnection-setLocalDescription.html.ini
@@ -20,19 +20,16 @@
     expected: FAIL
 
   [setLocalDescription() with type answer and null sdp should use lastAnswer generated from createAnswer]
     expected: FAIL
 
   [setLocalDescription() with answer not created by own createAnswer() should reject with InvalidModificationError]
     expected: FAIL
 
-  [Calling createOffer() and setLocalDescription() again after one round of local-offer/remote-answer should succeed]
-    expected: FAIL
-
   [Switching role from answerer to offerer after going back to stable state should succeed]
     expected: FAIL
 
   [Calling setLocalDescription(answer) from stable state should reject with InvalidStateError]
     expected: FAIL
 
   [Calling setLocalDescription(answer) from have-local-offer state should reject with InvalidStateError]
     expected: FAIL

--- a/testing/web-platform/meta/webrtc/RTCPeerConnection-setRemoteDescription-answer.html.ini
+++ b/testing/web-platform/meta/webrtc/RTCPeerConnection-setRemoteDescription-answer.html.ini
@@ -1,11 +1,8 @@
 [RTCPeerConnection-setRemoteDescription-answer.html]
   type: testharness
-  [setRemoteDescription() with valid state and answer should succeed]
-    expected: FAIL
-
   [Calling setRemoteDescription(answer) from stable state should reject with InvalidStateError]
     expected: FAIL
 
   [Calling setRemoteDescription(answer) from have-remote-offer state should reject with InvalidStateError]
     expected: FAIL
 

deleted file mode 100644
--- a/testing/web-platform/meta/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[RTCPeerConnection-setRemoteDescription-rollback.html]
-  type: testharness
-  expected: TIMEOUT
-  [setRemoteDescription(rollback) in have-remote-offer state should revert to stable state]
-    expected: FAIL
-
-  [Test onsignalingstatechange event for setRemoteDescription(rollback) in have-remote-offer state should revert to stable state]
-    expected: TIMEOUT
-

--- a/testing/web-platform/meta/webrtc/interfaces.html.ini
+++ b/testing/web-platform/meta/webrtc/interfaces.html.ini
@@ -10,28 +10,16 @@
     expected: FAIL
 
   [RTCPeerConnection interface: existence and properties of interface object]
     expected: FAIL
 
   [RTCPeerConnection interface: existence and properties of interface prototype object]
     expected: FAIL
 
-  [RTCPeerConnection interface: attribute currentLocalDescription]
-    expected: FAIL
-
-  [RTCPeerConnection interface: attribute pendingLocalDescription]
-    expected: FAIL
-
-  [RTCPeerConnection interface: attribute currentRemoteDescription]
-    expected: FAIL
-
-  [RTCPeerConnection interface: attribute pendingRemoteDescription]
-    expected: FAIL
-
   [RTCPeerConnection interface: attribute connectionState]
     expected: FAIL
 
   [RTCPeerConnection interface: attribute defaultIceServers]
     expected: FAIL
 
   [RTCPeerConnection interface: operation setConfiguration(RTCConfiguration)]
     expected: FAIL
@@ -58,28 +46,16 @@
     expected: FAIL
 
   [RTCPeerConnection interface: attribute idpErrorInfo]
     expected: FAIL
 
   [Stringification of new RTCPeerConnection]
     expected: FAIL
 
-  [RTCPeerConnection interface: new RTCPeerConnection must inherit property "currentLocalDescription" with the proper type (4)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: new RTCPeerConnection must inherit property "pendingLocalDescription" with the proper type (5)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: new RTCPeerConnection must inherit property "currentRemoteDescription" with the proper type (8)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: new RTCPeerConnection must inherit property "pendingRemoteDescription" with the proper type (9)]
-    expected: FAIL
-
   [RTCPeerConnection interface: new RTCPeerConnection must inherit property "connectionState" with the proper type (14)]
     expected: FAIL
 
   [RTCPeerConnection interface: new RTCPeerConnection must inherit property "setConfiguration" with the proper type (18)]
     expected: FAIL
 
   [RTCPeerConnection interface: calling setConfiguration(RTCConfiguration) on new RTCPeerConnection with too few arguments must throw TypeError]
     expected: FAIL
@@ -665,28 +641,16 @@
     expected: FAIL
 
   [RTCPeerConnection interface: operation getDefaultIceServers()]
     expected: FAIL
 
   [Stringification of new RTCPeerConnection()]
     expected: FAIL
 
-  [RTCPeerConnection interface: new RTCPeerConnection() must inherit property "currentLocalDescription" with the proper type (4)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: new RTCPeerConnection() must inherit property "pendingLocalDescription" with the proper type (5)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: new RTCPeerConnection() must inherit property "currentRemoteDescription" with the proper type (8)]
-    expected: FAIL
-
-  [RTCPeerConnection interface: new RTCPeerConnection() must inherit property "pendingRemoteDescription" with the proper type (9)]
-    expected: FAIL
-
   [RTCPeerConnection interface: new RTCPeerConnection() must inherit property "connectionState" with the proper type (14)]
     expected: FAIL
 
   [RTCPeerConnection interface: new RTCPeerConnection() must inherit property "setConfiguration" with the proper type (18)]
     expected: FAIL
 
   [RTCPeerConnection interface: calling setConfiguration(RTCConfiguration) on new RTCPeerConnection() with too few arguments must throw TypeError]
     expected: FAIL