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/tools/sk_tool_utils.h b/tools/sk_tool_utils.h
index 8754de6..0299e74 100644
--- a/tools/sk_tool_utils.h
+++ b/tools/sk_tool_utils.h
@@ -61,9 +61,9 @@
     // used.
     class PngPixelSerializer : public SkPixelSerializer {
     public:
-        bool onUseEncodedData(const void*, size_t) SK_OVERRIDE { return true; }
+        bool onUseEncodedData(const void*, size_t) override { return true; }
         SkData* onEncodePixels(const SkImageInfo& info, const void* pixels,
-                               size_t rowBytes) SK_OVERRIDE {
+                               size_t rowBytes) override {
             return SkImageEncoder::EncodeData(info, pixels, rowBytes,
                                               SkImageEncoder::kPNG_Type, 100);
         }