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/PixelRefTest.cpp b/tests/PixelRefTest.cpp
index b9a2824..e13d0e0 100644
--- a/tests/PixelRefTest.cpp
+++ b/tests/PixelRefTest.cpp
@@ -6,7 +6,7 @@
 class TestListener : public SkPixelRef::GenIDChangeListener {
 public:
     explicit TestListener(int* ptr) : fPtr(ptr) {}
-    void onChange() SK_OVERRIDE { (*fPtr)++; }
+    void onChange() override { (*fPtr)++; }
 private:
     int* fPtr;
 };