C++11 override should now be supported by all of {bots,Chrome,Android,Mozilla}

src/gpu/gl/glx/SkCreatePlatformGLContext_glx.cpp

Index: src/gpu/gl/glx/SkCreatePlatformGLContext_glx.cpp
diff --git a/src/gpu/gl/glx/SkCreatePlatformGLContext_glx.cpp b/src/gpu/gl/glx/SkCreatePlatformGLContext_glx.cpp
index 9efa993b240e3698065c65871f92af1ebdb7533d..8006d498aa670fbe77e5c927d1f2dbe437f1b4fa 100644
--- a/src/gpu/gl/glx/SkCreatePlatformGLContext_glx.cpp
+++ b/src/gpu/gl/glx/SkCreatePlatformGLContext_glx.cpp
@@ -47,9 +47,9 @@ static int ctxErrorHandler(Display *dpy, XErrorEvent *ev) {
 class GLXGLContext : public SkGLContext {
 public:
     GLXGLContext(GrGLStandard forcedGpuAPI);
-    ~GLXGLContext() SK_OVERRIDE;
-    void makeCurrent() const SK_OVERRIDE;
-    void swapBuffers() const SK_OVERRIDE;
+    ~GLXGLContext() override;
+    void makeCurrent() const override;
+    void swapBuffers() const override;
 
 private:
     void destroyGLContext();