Add a Paint::toString() method to describe our Paint objects.

sky/engine/core/painting/Paint.h

Index: sky/engine/core/painting/Paint.h
diff --git a/sky/engine/core/painting/Paint.h b/sky/engine/core/painting/Paint.h
index 6d3451ae3fb2815e10ee4de5fb83ba63e59dfdd1..7888905d4250dd01d6d26e05822249056eca236d 100644
--- a/sky/engine/core/painting/Paint.h
+++ b/sky/engine/core/painting/Paint.h
@@ -11,6 +11,7 @@
 #include "sky/engine/tonic/dart_wrappable.h"
 #include "sky/engine/wtf/PassRefPtr.h"
 #include "sky/engine/wtf/RefCounted.h"
+#include "sky/engine/wtf/text/WTFString.h"
 #include "third_party/skia/include/core/SkPaint.h"
 
 namespace blink {
@@ -21,39 +22,40 @@ class MaskFilter;
 class Shader;
 
 class Paint : public RefCounted<Paint>, public DartWrappable {
-    DEFINE_WRAPPERTYPEINFO();
-public:
-    ~Paint() override;
-    static PassRefPtr<Paint> create()
-    {
-        return adoptRef(new Paint);
-    }
+  DEFINE_WRAPPERTYPEINFO();
+ public:
+  ~Paint() override;
+  static PassRefPtr<Paint> create() { return adoptRef(new Paint); }
 
-    bool isAntiAlias() const { return m_paint.isAntiAlias(); }
-    void setIsAntiAlias(bool value) { m_paint.setAntiAlias(value); }
+  bool isAntiAlias() const { return paint_.isAntiAlias(); }
+  void setIsAntiAlias(bool value) { paint_.setAntiAlias(value); }
 
-    SkColor color() const { return m_paint.getColor(); }
-    void setColor(SkColor color) { m_paint.setColor(color); }
+  SkColor color() const { return paint_.getColor(); }
+  void setColor(SkColor color) { paint_.setColor(color); }
 
-    SkScalar strokeWidth() const { return m_paint.getStrokeWidth(); }
-    void setStrokeWidth(SkScalar strokeWidth) { m_paint.setStrokeWidth(strokeWidth); }
+  SkScalar strokeWidth() const { return paint_.getStrokeWidth(); }
+  void setStrokeWidth(SkScalar strokeWidth) {
+    paint_.setStrokeWidth(strokeWidth);
+  }
 
-    void setDrawLooper(DrawLooper* looper);
-    void setColorFilter(ColorFilter* filter);
-    void setMaskFilter(MaskFilter* filter);
-    void setShader(Shader* shader);
-    void setStyle(SkPaint::Style style);
-    void setTransferMode(SkXfermode::Mode transfer_mode);
+  void setDrawLooper(DrawLooper* looper);
+  void setColorFilter(ColorFilter* filter);
+  void setMaskFilter(MaskFilter* filter);
+  void setShader(Shader* shader);
+  void setStyle(SkPaint::Style style);
+  void setTransferMode(SkXfermode::Mode transfer_mode);
 
-    const SkPaint& paint() const { return m_paint; }
-    void setPaint(const SkPaint& paint) { m_paint = paint; }
+  const SkPaint& paint() const { return paint_; }
+  void setPaint(const SkPaint& paint) { paint_ = paint; }
 
-private:
-    Paint();
+  String toString() const;
 
-    SkPaint m_paint;
+ private:
+  Paint();
+
+  SkPaint paint_;
 };
 
-} // namespace blink
+}  // namespace blink
 
 #endif  // SKY_ENGINE_CORE_PAINTING_PAINT_H_