[SVGDom] <polygon> & <polyline> support

experimental/svg/model/SkSVGTypes.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkSVGTypes_DEFINED
 #define SkSVGTypes_DEFINED
 
 #include "SkColor.h"
 #include "SkMatrix.h"
+#include "SkPoint.h"
 #include "SkRect.h"
 #include "SkScalar.h"
+#include "SkTDArray.h"
 #include "SkTypes.h"
 
 template <typename T>
 class SkSVGPrimitiveTypeWrapper {
 public:
     SkSVGPrimitiveTypeWrapper() = default;
     explicit constexpr SkSVGPrimitiveTypeWrapper(T v) : fValue(v) {}
 
     SkSVGPrimitiveTypeWrapper(const SkSVGPrimitiveTypeWrapper&)            = default;
     SkSVGPrimitiveTypeWrapper& operator=(const SkSVGPrimitiveTypeWrapper&) = default;
+    SkSVGPrimitiveTypeWrapper& operator=(const T& v) { fValue = v; return *this; }
 
     bool operator==(const SkSVGPrimitiveTypeWrapper<T>& other) const {
         return fValue == other.fValue;
     }
     bool operator!=(const SkSVGPrimitiveTypeWrapper<T>& other) const {
         return !(*this == other);
     }
 
     const T& value() const { return fValue; }
     operator const T&() const { return fValue; }
 
 private:
     T fValue;
 };
 
 using SkSVGColorType      = SkSVGPrimitiveTypeWrapper<SkColor >;
 using SkSVGNumberType     = SkSVGPrimitiveTypeWrapper<SkScalar>;
 using SkSVGViewBoxType    = SkSVGPrimitiveTypeWrapper<SkRect  >;
 using SkSVGTransformType  = SkSVGPrimitiveTypeWrapper<SkMatrix>;
+using SkSVGPointsType     = SkSVGPrimitiveTypeWrapper<SkTDArray<SkPoint>>;
 
 class SkSVGLength {
 public:
     enum class Unit {
         kUnknown,
         kNumber,
         kPercentage,
         kEMS,
         kEXS,
         kPX,
@@ skipping 95 matching lines @@
     bool operator==(const SkSVGLineJoin& other) const { return fType == other.fType; }
     bool operator!=(const SkSVGLineJoin& other) const { return !(*this == other); }
 
     Type type() const { return fType; }
 
 private:
     Type fType;
 };
 
 #endif // SkSVGTypes_DEFINED