style nit cleanups. e.g. remove 'virtual' on override declarations

src/effects/gradients/SkTwoPointConicalGradient.h

Index: src/effects/gradients/SkTwoPointConicalGradient.h
diff --git a/src/effects/gradients/SkTwoPointConicalGradient.h b/src/effects/gradients/SkTwoPointConicalGradient.h
index 0a3cd902018b615a5c774d0b2cbd7cbc4aeecf8a..8ff0048c243e178ff4a79ea33fe53e5c442f79da 100644
--- a/src/effects/gradients/SkTwoPointConicalGradient.h
+++ b/src/effects/gradients/SkTwoPointConicalGradient.h
@@ -58,12 +58,10 @@ public:
         typedef SkGradientShaderBase::GradientShaderBaseContext INHERITED;
     };
 
-    virtual BitmapType asABitmap(SkBitmap* bitmap,
-                                 SkMatrix* matrix,
-                                 TileMode* xy) const override;
+    BitmapType asABitmap(SkBitmap* bitmap, SkMatrix* matrix, TileMode* xy) const override;
     SkShader::GradientType asAGradient(GradientInfo* info) const  override;
-    virtual bool asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix&, const SkMatrix*,
-                                     GrColor*, GrFragmentProcessor**) const override;
+    bool asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix&, const SkMatrix*,
+                             GrColor*, GrFragmentProcessor**) const override;
     bool isOpaque() const override;
 
     SkScalar getCenterX1() const { return SkPoint::Distance(fCenter1, fCenter2); }