Fixing some warnings on Linux

samplecode/SampleTextAlpha.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 76 matching lines @@
             SkDebugf("------ byte %x\n", fByte);
         }
 
         if (false) {
             fByte += 1;
             fByte &= 0xFF;
             this->inval(NULL);
         }
     }
 
-    virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
+    virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned) SK_OVERRIDE {
         return new Click(this);
     }
 
     virtual bool onClick(Click* click) {
         int y = click->fICurr.fY;
         if (y < 0) {
             y = 0;
         } else if (y > 255) {
             y = 255;
         }
         fByte = y;
         this->inval(NULL);
         return true;
     }
 
 private:
     int fByte;
 
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new TextAlphaView; }
 static SkViewRegister reg(MyFactory);