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/aaclip.cpp b/gm/aaclip.cpp
index e977f5f..e613af6 100644
--- a/gm/aaclip.cpp
+++ b/gm/aaclip.cpp
@@ -71,15 +71,15 @@
     }
 
 protected:
-    SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() override {
         return SkString("aaclip");
     }
 
-    SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() override {
         return SkISize::Make(240, 120);
     }
 
-    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) override {
         // Initial pixel-boundary-aligned draw
         draw_rect_tests(canvas);
 
@@ -154,15 +154,15 @@
     CGImageGM() {}
 
 protected:
-    SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() override {
         return SkString("cgimage");
     }
 
-    SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() override {
         return SkISize::Make(800, 250);
     }
 
-    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) override {
         const struct {
             SkColorType fCT;
             SkAlphaType fAT;