Fix for potential typedef issue

include/effects/SkAvoidXfermode.h

Index: include/effects/SkAvoidXfermode.h
diff --git a/include/effects/SkAvoidXfermode.h b/include/effects/SkAvoidXfermode.h
index 4950b64707133930f7f956f08faa7cb1d938465e..1874767c16369beb1592aa9c987e0184fc2cdc9c 100644
--- a/include/effects/SkAvoidXfermode.h
+++ b/include/effects/SkAvoidXfermode.h
@@ -16,6 +16,8 @@
     color.
 */
 class SK_API SkAvoidXfermode : public SkXfermode {
+    typedef SkXfermode INHERITED;
+
 public:
     enum Mode {
         kAvoidColor_Mode,   //!< draw everywhere except on the opColor
@@ -58,8 +60,6 @@ private:
     SkColor     fOpColor;
     uint32_t    fDistMul;   // x.14
     Mode        fMode;
-
-    typedef SkXfermode INHERITED;
 };
 
 #endif