enforce 16byte alignment in shader contexts

include/effects/SkPerlinNoiseShader.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPerlinNoiseShader_DEFINED
 #define SkPerlinNoiseShader_DEFINED
 
@@ skipping 50 matching lines @@
     static SkShader* CreateTurbulence(SkScalar baseFrequencyX, SkScalar baseFrequencyY,
                                      int numOctaves, SkScalar seed,
                                      const SkISize* tileSize = NULL);
     /**
      * Create alias for CreateTurbulunce until all Skia users changed
      * its code to use the new naming
      */
     static SkShader* CreateTubulence(SkScalar baseFrequencyX, SkScalar baseFrequencyY,
                                      int numOctaves, SkScalar seed,
                                      const SkISize* tileSize = NULL) {
-    return CreateTurbulence(baseFrequencyX, baseFrequencyY, numOctaves, seed, tileSize);
+        return CreateTurbulence(baseFrequencyX, baseFrequencyY, numOctaves, seed, tileSize);
     }
 
-
-    size_t contextSize(const ContextRec&) const override;
-
     class PerlinNoiseShaderContext : public SkShader::Context {
     public:
         PerlinNoiseShaderContext(const SkPerlinNoiseShader& shader, const ContextRec&);
         virtual ~PerlinNoiseShaderContext();
 
         void shadeSpan(int x, int y, SkPMColor[], int count) override;
 
     private:
         SkPMColor shade(const SkPoint& point, StitchData& stitchData) const;
         SkScalar calculateTurbulenceValueForPoint(
@@ skipping 12 matching lines @@
     const GrFragmentProcessor* asFragmentProcessor(GrContext* context, const SkMatrix& viewM,
                                                    const SkMatrix*, SkFilterQuality) const override;
 #endif
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPerlinNoiseShader)
 
 protected:
     void flatten(SkWriteBuffer&) const override;
     Context* onCreateContext(const ContextRec&, void* storage) const override;
+    size_t onContextSize(const ContextRec&) const override;
 
 private:
     SkPerlinNoiseShader(SkPerlinNoiseShader::Type type, SkScalar baseFrequencyX,
                         SkScalar baseFrequencyY, int numOctaves, SkScalar seed,
                         const SkISize* tileSize);
     virtual ~SkPerlinNoiseShader();
 
     const SkPerlinNoiseShader::Type fType;
     const SkScalar                  fBaseFrequencyX;
     const SkScalar                  fBaseFrequencyY;
     const int                       fNumOctaves;
     const SkScalar                  fSeed;
     const SkISize                   fTileSize;
     const bool                      fStitchTiles;
 
     typedef SkShader INHERITED;
 };
 
 #endif