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/src/image/SkSurface_Raster.cpp b/src/image/SkSurface_Raster.cpp
index 9c38640..45237b0 100644
--- a/src/image/SkSurface_Raster.cpp
+++ b/src/image/SkSurface_Raster.cpp
@@ -22,12 +22,12 @@
                      const SkSurfaceProps*);
     SkSurface_Raster(SkPixelRef*, const SkSurfaceProps*);
 
-    SkCanvas* onNewCanvas() SK_OVERRIDE;
-    SkSurface* onNewSurface(const SkImageInfo&) SK_OVERRIDE;
-    SkImage* onNewImageSnapshot(Budgeted) SK_OVERRIDE;
+    SkCanvas* onNewCanvas() override;
+    SkSurface* onNewSurface(const SkImageInfo&) override;
+    SkImage* onNewImageSnapshot(Budgeted) override;
     virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y,
-                        const SkPaint*) SK_OVERRIDE;
-    void onCopyOnWrite(ContentChangeMode) SK_OVERRIDE;
+                        const SkPaint*) override;
+    void onCopyOnWrite(ContentChangeMode) override;
 
 private:
     SkBitmap    fBitmap;