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

src/effects/gradients/SkRadialGradient.cpp

Index: src/effects/gradients/SkRadialGradient.cpp
diff --git a/src/effects/gradients/SkRadialGradient.cpp b/src/effects/gradients/SkRadialGradient.cpp
index 4f451b7edfbb19affaf59c33a18c3171a49889a7..5ea2e72a9de78ce7a4d5333c43976c025cc4bba0 100644
--- a/src/effects/gradients/SkRadialGradient.cpp
+++ b/src/effects/gradients/SkRadialGradient.cpp
@@ -498,14 +498,14 @@ public:
 
     virtual ~GrRadialGradient() { }
 
-    virtual const char* name() const SK_OVERRIDE { return "Radial Gradient"; }
+    const char* name() const SK_OVERRIDE { return "Radial Gradient"; }
 
     virtual void getGLProcessorKey(const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const SK_OVERRIDE {
         GrGLRadialGradient::GenKey(*this, caps, b);
     }
 
-    virtual GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE {
+    GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE {
         return SkNEW_ARGS(GrGLRadialGradient, (*this));
     }