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

NOPRESUBMIT=true

BUG=skia:
DOCS_PREVIEW= https://skia.org/?cl=1037793002

Review URL: https://codereview.chromium.org/1037793002
diff --git a/tests/PDFInvalidBitmapTest.cpp b/tests/PDFInvalidBitmapTest.cpp
index bc7143a..8a9b1fa 100644
--- a/tests/PDFInvalidBitmapTest.cpp
+++ b/tests/PDFInvalidBitmapTest.cpp
@@ -23,8 +23,8 @@
 public:
     InvalidPixelRef(const SkImageInfo& info) : SkPixelRef(info) {}
 private:
-    bool onNewLockPixels(LockRec*) SK_OVERRIDE { return false; }
-    void onUnlockPixels() SK_OVERRIDE {
+    bool onNewLockPixels(LockRec*) override { return false; }
+    void onUnlockPixels() override {
         SkDEBUGFAIL("InvalidPixelRef can't be locked");
     }
 };