diff --git a/gfx/thebes/gfx2DGlue.h b/gfx/thebes/gfx2DGlue.h
index bb5788b088bb..543ce5baa5ec 100644
--- a/gfx/thebes/gfx2DGlue.h
+++ b/gfx/thebes/gfx2DGlue.h
@@ -82,30 +82,6 @@ inline GraphicsFilter ThebesFilter(Filter aFilter)
   }
 }
 
-inline ExtendMode ToExtendMode(gfxPattern::GraphicsExtend aExtend)
-{
-  switch (aExtend) {
-  case gfxPattern::EXTEND_REPEAT:
-    return ExtendMode::REPEAT;
-  case gfxPattern::EXTEND_REFLECT:
-    return ExtendMode::REFLECT;
-  default:
-    return ExtendMode::CLAMP;
-  }
-}
-
-inline gfxPattern::GraphicsExtend ThebesExtend(ExtendMode aExtend)
-{
-  switch (aExtend) {
-  case ExtendMode::REPEAT:
-    return gfxPattern::EXTEND_REPEAT;
-  case ExtendMode::REFLECT:
-    return gfxPattern::EXTEND_REFLECT;
-  default:
-    return gfxPattern::EXTEND_PAD;
-  }
-}
-
 inline gfxPoint ThebesPoint(const Point &aPoint)
 {
   return gfxPoint(aPoint.x, aPoint.y);
diff --git a/gfx/thebes/gfxPattern.h b/gfx/thebes/gfxPattern.h
index e2bd433c7397..8009ab20570f 100644
--- a/gfx/thebes/gfxPattern.h
+++ b/gfx/thebes/gfxPattern.h
@@ -53,13 +53,6 @@ public:
                                       mozilla::gfx::Matrix *aOriginalUserToDevice = nullptr);
     bool IsOpaque();
 
-    enum GraphicsExtend {
-        EXTEND_NONE,
-        EXTEND_REPEAT,
-        EXTEND_REFLECT,
-        EXTEND_PAD
-    };
-
     // clamp, repeat, reflect
     void SetExtend(mozilla::gfx::ExtendMode aExtend);