add SK_OVERRIDE



git-svn-id: http://skia.googlecode.com/svn/trunk@2738 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/effects/SkAvoidXfermode.h b/include/effects/SkAvoidXfermode.h
index 24b4959..8497265 100644
--- a/include/effects/SkAvoidXfermode.h
+++ b/include/effects/SkAvoidXfermode.h
@@ -43,17 +43,17 @@
 
     // overrides from SkXfermode
     virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
-                        const SkAlpha aa[]);
+                        const SkAlpha aa[]) SK_OVERRIDE;
     virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
-                        const SkAlpha aa[]);
+                        const SkAlpha aa[]) SK_OVERRIDE;
     virtual void xfer4444(uint16_t dst[], const SkPMColor src[], int count,
-                          const SkAlpha aa[]);
+                          const SkAlpha aa[]) SK_OVERRIDE;
     virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
-                        const SkAlpha aa[]);
+                        const SkAlpha aa[]) SK_OVERRIDE;
 
     // overrides from SkFlattenable
-    virtual Factory getFactory();
-    virtual void flatten(SkFlattenableWriteBuffer&);
+    virtual Factory getFactory() SK_OVERRIDE;
+    virtual void flatten(SkFlattenableWriteBuffer&) SK_OVERRIDE;
 
     static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) {
         return SkNEW_ARGS(SkAvoidXfermode, (buffer));