@@ -, +, @@ 
--
--- firefox-71.0.orig/layout/generic/WritingModes.h	2019-12-02 04:23:18.000000000 -0800
+++ firefox-71.0.orig/layout/generic/WritingModes.h	2019-12-12 12:05:54.650296624 -0800
@@ -518,7 +518,8 @@ class WritingMode {
    */
   void SetDirectionFromBidiLevel(uint8_t level) {
     if (IS_LEVEL_RTL(level) == IsBidiLTR()) {
-      mWritingMode ^= StyleWritingMode_RTL | StyleWritingMode_INLINE_REVERSED;
+      mWritingMode.bits ^= static_cast<uint8_t>(
+          (StyleWritingMode_RTL | StyleWritingMode_INLINE_REVERSED).bits);
     }
   }
 
--- firefox-71.0.orig/servo/ports/geckolib/cbindgen.toml	2019-12-02 04:23:23.000000000 -0800
+++ firefox-71.0.orig/servo/ports/geckolib/cbindgen.toml	2019-12-12 12:06:54.546352426 -0800
@@ -616,13 +616,3 @@ renaming_overrides_prefixing = true
   // Get the layout rect, replacing auto right / bottom values for aAutoSize.
   inline nsRect ToLayoutRect(nscoord aAutoSize = NS_MAXSIZE) const;
 """
-
-"WritingMode" = """
-  StyleWritingMode operator^(const StyleWritingMode& other) const {
-    return {static_cast<decltype(bits)>(this->bits ^ other.bits)};
-  }
-  StyleWritingMode& operator^=(const StyleWritingMode& other) {
-    *this = (*this ^ other);
-    return *this;
-  }
-"""