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/gm/glyph_pos.cpp b/gm/glyph_pos.cpp
index 3f1ea35..0da59ac 100644
--- a/gm/glyph_pos.cpp
+++ b/gm/glyph_pos.cpp
@@ -28,7 +28,7 @@
 
 protected:
 
-    SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() override {
         SkString str("glyph_pos");
         if (fStrokeWidth == 0.0f) {
             str.append("_h"); // h == Hairline.
@@ -45,9 +45,9 @@
         return str;
     }
 
-    SkISize onISize() SK_OVERRIDE { return SkISize::Make(800, 600); }
+    SkISize onISize() override { return SkISize::Make(800, 600); }
 
-    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) override {
         if (!fProp) {
             fProp.reset(sk_tool_utils::create_portable_typeface("Helvetica", SkTypeface::kNormal));
         }