style: Update Gecko bindings.

components/style/gecko/generated/bindings.rs

@@ -587,6 +587,12 @@ extern "C" {
     pub fn Gecko_GetElementId(element: RawGeckoElementBorrowed)
      -> *mut nsIAtom;
 }
+extern "C" {
+    pub fn Gecko_MatchLang(element: RawGeckoElementBorrowed,
+                           override_lang: *mut nsIAtom,
+                           has_override_lang: bool, value: *const u16)
+     -> bool;
+}
 extern "C" {
     pub fn Gecko_GetXMLLangValue(element: RawGeckoElementBorrowed)
      -> *mut nsIAtom;
@@ -595,6 +601,9 @@ extern "C" {
     pub fn Gecko_AtomAttrValue(element: RawGeckoElementBorrowed,
                                attribute: *mut nsIAtom) -> *mut nsIAtom;
 }
+extern "C" {
+    pub fn Gecko_LangValue(element: RawGeckoElementBorrowed) -> *mut nsIAtom;
+}
 extern "C" {
     pub fn Gecko_HasAttr(element: RawGeckoElementBorrowed, ns: *mut nsIAtom,
                          name: *mut nsIAtom) -> bool;
@@ -639,6 +648,10 @@ extern "C" {
                                        attribute: *mut nsIAtom)
      -> *mut nsIAtom;
 }
+extern "C" {
+    pub fn Gecko_SnapshotLangValue(element: *const ServoElementSnapshot)
+     -> *mut nsIAtom;
+}
 extern "C" {
     pub fn Gecko_SnapshotHasAttr(element: *const ServoElementSnapshot,
                                  ns: *mut nsIAtom, name: *mut nsIAtom)
@@ -2210,8 +2223,7 @@ extern "C" {
                                          from: *const RawGeckoGfxMatrix4x4,
                                          to: *const RawGeckoGfxMatrix4x4,
                                          progress: f64,
-                                         result:
-                                             *mut RawGeckoGfxMatrix4x4);
+                                         result: *mut RawGeckoGfxMatrix4x4);
 }
 extern "C" {
     pub fn Servo_AnimationValues_Interpolate(from: