Mark overridden destructors with 'override' and remove 'virtual'

This silences a new warning in clang 5.0

Change-Id: Ieb5b75a6ffed60107c3fd16075d2ecfd515b55e8
Reviewed-on: https://skia-review.googlesource.com/10006
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/experimental/SkPerlinNoiseShader2/SkPerlinNoiseShader2.h b/experimental/SkPerlinNoiseShader2/SkPerlinNoiseShader2.h
index 1f4839c8b4..0f40ae4af3 100644
--- a/experimental/SkPerlinNoiseShader2/SkPerlinNoiseShader2.h
+++ b/experimental/SkPerlinNoiseShader2/SkPerlinNoiseShader2.h
@@ -86,7 +86,7 @@ public:
     class PerlinNoiseShaderContext : public SkShader::Context {
     public:
         PerlinNoiseShaderContext(const SkPerlinNoiseShader2& shader, const ContextRec&);
-        virtual ~PerlinNoiseShaderContext();
+        ~PerlinNoiseShaderContext() override;
 
         void shadeSpan(int x, int y, SkPMColor[], int count) override;
 
@@ -120,7 +120,7 @@ private:
     SkPerlinNoiseShader2(SkPerlinNoiseShader2::Type type, SkScalar baseFrequencyX,
                         SkScalar baseFrequencyY, int numOctaves, SkScalar seed,
                         const SkISize* tileSize);
-    virtual ~SkPerlinNoiseShader2();
+    ~SkPerlinNoiseShader2() override;
 
     const SkPerlinNoiseShader2::Type fType;
     const SkScalar                  fBaseFrequencyX;