Bug 1823333 [VAAPI] Fix FEATURE_HW_DECODED_VIDEO_ZERO_COPY handling as it's allowlisted feature r=gfx-reviewers,aosmond

Differential Revision: https://phabricator.services.mozilla.com/D173573

gfx/thebes/gfxPlatformGtk.cpp

@@ -279,7 +279,7 @@ bool gfxPlatformGtk::InitVAAPIConfig(bool aForceEnabledByUser) {
       } else if (status == nsIGfxInfo::FEATURE_BLOCKED_PLATFORM_TEST) {
         featureZeroCopy.ForceDisable(FeatureStatus::Unavailable,
                                      "Force disabled by gfxInfo", failureId);
-      } else if (status != nsIGfxInfo::FEATURE_STATUS_OK) {
+      } else if (status != nsIGfxInfo::FEATURE_ALLOW_ALWAYS) {
         featureZeroCopy.Disable(FeatureStatus::Blocklisted,
                                 "Blocklisted by gfxInfo", failureId);
       }

widget/gtk/GfxInfo.cpp

@@ -826,7 +826,13 @@ const nsTArray<GfxDriverInfo>& GfxInfo::GetGfxDriverInfo() {
                                "FEATURE_HARDWARE_VIDEO_DECODING_DISABLE", "");
 #endif
     ////////////////////////////////////
-    // HW_DECODED_VIDEO_ZERO_COPY
+    // FEATURE_HW_DECODED_VIDEO_ZERO_COPY - ALLOWLIST
+    APPEND_TO_DRIVER_BLOCKLIST2(OperatingSystem::Linux, DeviceFamily::All,
+                                nsIGfxInfo::FEATURE_HW_DECODED_VIDEO_ZERO_COPY,
+                                nsIGfxInfo::FEATURE_ALLOW_ALWAYS,
+                                DRIVER_COMPARISON_IGNORED, V(0, 0, 0, 0),
+                                "FEATURE_ROLLOUT_ALL");
+
     // Disable on all AMD devices using Mesa (Bug 1802844).
     APPEND_TO_DRIVER_BLOCKLIST_EXT(
         OperatingSystem::Linux, ScreenSizeStatus::All, BatteryStatus::All,