Fix up all the easy virtual ... SK_OVERRIDE cases.

src/effects/gradients/SkLinearGradient.h

Index: src/effects/gradients/SkLinearGradient.h
diff --git a/src/effects/gradients/SkLinearGradient.h b/src/effects/gradients/SkLinearGradient.h
index 1a7688d39d0f0bdab3dd2b32e92b1a3d7617d194..e63a1b8a2ec9c37587fa94d1e3a6ede4ab2ab670 100644
--- a/src/effects/gradients/SkLinearGradient.h
+++ b/src/effects/gradients/SkLinearGradient.h
@@ -14,22 +14,22 @@ class SkLinearGradient : public SkGradientShaderBase {
 public:
     SkLinearGradient(const SkPoint pts[2], const Descriptor&);
 
-    virtual size_t contextSize() const SK_OVERRIDE;
+    size_t contextSize() const SK_OVERRIDE;
 
     class LinearGradientContext : public SkGradientShaderBase::GradientShaderBaseContext {
     public:
         LinearGradientContext(const SkLinearGradient&, const ContextRec&);
         ~LinearGradientContext() {}
 
-        virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE;
-        virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE;
+        void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE;
+        void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE;
 
     private:
         typedef SkGradientShaderBase::GradientShaderBaseContext INHERITED;
     };
 
-    virtual BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*) const SK_OVERRIDE;
-    virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
+    BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*) const SK_OVERRIDE;
+    GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
     virtual bool asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix& viewM,
                                      const SkMatrix*,
                                      GrColor*, GrFragmentProcessor**) const SK_OVERRIDE;
@@ -39,8 +39,8 @@ public:
 
 protected:
     SkLinearGradient(SkReadBuffer& buffer);
-    virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE;
-    virtual Context* onCreateContext(const ContextRec&, void* storage) const SK_OVERRIDE;
+    void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE;
+    Context* onCreateContext(const ContextRec&, void* storage) const SK_OVERRIDE;
 
 private:
     friend class SkGradientShader;