Bug 1872780 - Remove layout.css.size-adjust.enabled pref r=webidl,emilio

Differential Revision: https://phabricator.services.mozilla.com/D258800

Author: mr-cheffy

dom/webidl/FontFace.webidl

@@ -24,7 +24,7 @@ dictionary FontFaceDescriptors {
   UTF8String ascentOverride = "normal";
   UTF8String descentOverride = "normal";
   UTF8String lineGapOverride = "normal";
-  [Pref="layout.css.size-adjust.enabled"] UTF8String sizeAdjust = "100%";
+  UTF8String sizeAdjust = "100%";
 };
 
 enum FontFaceLoadStatus { "unloaded", "loading", "loaded", "error" };

layout/style/FontFaceImpl.cpp

@@ -489,8 +489,7 @@ bool FontFaceImpl::SetDescriptors(const nsACString& aFamily,
         !setDesc(eCSSFontDesc_DescentOverride, aDescriptors.mDescentOverride) ||
         !setDesc(eCSSFontDesc_LineGapOverride,
                  aDescriptors.mLineGapOverride))) ||
-      (StaticPrefs::layout_css_size_adjust_enabled() &&
-       !setDesc(eCSSFontDesc_SizeAdjust, aDescriptors.mSizeAdjust))) {
+      !setDesc(eCSSFontDesc_SizeAdjust, aDescriptors.mSizeAdjust)) {
     // XXX Handle font-variant once we support it (bug 1055385).
 
     // If any of the descriptors failed to parse, none of them should be set

modules/libpref/init/StaticPrefList.yaml

@@ -9901,13 +9901,6 @@
   mirror: always
   rust: true
 
-# Is support for the size-adjust @font-face descriptor enabled?
-- name: layout.css.size-adjust.enabled
-  type: RelaxedAtomicBool
-  value: true
-  mirror: always
-  rust: true
-
 # Is support for the tech() function in the @font-face src descriptor enabled?
 - name: layout.css.font-tech.enabled
   type: RelaxedAtomicBool

servo/components/style/font_face.rs

@@ -576,9 +576,6 @@ macro_rules! is_descriptor_enabled {
     ("font-variation-settings") => {
         static_prefs::pref!("layout.css.font-variations.enabled")
     };
-    ("size-adjust") => {
-        static_prefs::pref!("layout.css.size-adjust.enabled")
-    };
     ($name:tt) => {
         true
     };