Cleanup: Mark some overridden methods with 'SK_OVERRIDE'.

src/effects/gradients/SkLinearGradient.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkLinearGradient.h"
 
 static inline int repeat_bits(int x, const int bits) {
@@ skipping 475 matching lines @@
 
     static GrFragmentProcessor* Create(GrContext* ctx,
                                        const SkLinearGradient& shader,
                                        const SkMatrix& matrix,
                                        SkShader::TileMode tm) {
         return SkNEW_ARGS(GrLinearGradient, (ctx, shader, matrix, tm));
     }
 
     virtual ~GrLinearGradient() { }
 
-    virtual const char* name() const { return "Linear Gradient"; }
+    virtual const char* name() const SK_OVERRIDE { return "Linear Gradient"; }
 
     virtual void getGLProcessorKey(const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const SK_OVERRIDE {
         GrGLLinearGradient::GenKey(*this, caps, b);
     }
 
     virtual GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE {
         return SkNEW_ARGS(GrGLLinearGradient, (*this));
     }
 
@@ skipping 92 matching lines @@
     str->append("SkLinearGradient (");
 
     str->appendf("start: (%f, %f)", fStart.fX, fStart.fY);
     str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY);
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif