diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
index f7d703800dd0f..cd8056d07fa8c 100644
--- a/Source/WebCore/ChangeLog
+++ b/Source/WebCore/ChangeLog
@@ -1,3 +1,23 @@
+2016-12-19  Zan Dobersek  <zdobersek@igalia.com>
+
+        [EME] Remove MediaKeySessionType::persistent-usage-record
+        https://bugs.webkit.org/show_bug.cgi?id=166012
+
+        Reviewed by Xabier Rodriguez-Calvar.
+
+        Remove the "persistent-usage-record" value from the MediaKeySessionType.
+        This was removed from the spec as an at-risk feature.
+        https://github.com/w3c/encrypted-media/issues/353
+
+        No non-imported tests need to be updated. This is still present in the
+        tests imported from the W3C's web-platform-tests repository, but the
+        tests haven't yet been updated upstream.
+
+        * Modules/encryptedmedia/CDM.cpp:
+        (WebCore::CDM::isPersistentType):
+        * Modules/encryptedmedia/MediaKeySessionType.h:
+        * Modules/encryptedmedia/MediaKeySessionType.idl:
+
 2016-12-19  Miguel Gomez  <magomez@igalia.com>
 
         [GTK] GLXBadFBConfig error when creating an OpenGL context
diff --git a/Source/WebCore/Modules/encryptedmedia/CDM.cpp b/Source/WebCore/Modules/encryptedmedia/CDM.cpp
index 14292196da408..ba62517299954 100644
--- a/Source/WebCore/Modules/encryptedmedia/CDM.cpp
+++ b/Source/WebCore/Modules/encryptedmedia/CDM.cpp
@@ -176,7 +176,6 @@ bool CDM::isPersistentType(MediaKeySessionType sessionType)
         // ↳ "temporary"
         return false;
     case MediaKeySessionType::PersistentLicense:
-    case MediaKeySessionType::PersistentUsageRecord:
         // ↳ "persistent-license"
         return true;
     }
diff --git a/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.h b/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.h
index f31c87c1a34fd..3ba9d54df6933 100644
--- a/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.h
+++ b/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.h
@@ -34,7 +34,6 @@ namespace WebCore {
 
 enum class MediaKeySessionType {
     Temporary,
-    PersistentUsageRecord,
     PersistentLicense
 };
 
diff --git a/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.idl b/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.idl
index bf500d5f24760..f237969562d69 100644
--- a/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.idl
+++ b/Source/WebCore/Modules/encryptedmedia/MediaKeySessionType.idl
@@ -29,6 +29,5 @@
 ]
 enum MediaKeySessionType {
     "temporary",
-    "persistent-usage-record",
     "persistent-license"
 };