C++11 override should now be supported by all of {bots,Chrome,Android,Mozilla}

src/pdf/SkPDFBitmap.cpp

Index: src/pdf/SkPDFBitmap.cpp
diff --git a/src/pdf/SkPDFBitmap.cpp b/src/pdf/SkPDFBitmap.cpp
index 765016dcf2d0d06f05b25cca2747649513ad0ef5..e4580fcb98e69f7ec5b4f3eb63b69fd34bb207ab 100644
--- a/src/pdf/SkPDFBitmap.cpp
+++ b/src/pdf/SkPDFBitmap.cpp
@@ -244,7 +244,7 @@ class PDFAlphaBitmap : public SkPDFObject {
 public:
     PDFAlphaBitmap(const SkBitmap& bm) : fBitmap(bm) {}
     ~PDFAlphaBitmap() {}
-    void emitObject(SkWStream*, SkPDFCatalog*) SK_OVERRIDE;
+    void emitObject(SkWStream*, SkPDFCatalog*) override;
 
 private:
     const SkBitmap fBitmap;