Add SkColor4f serialization

tools/debugger/SkDrawCommand.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SKDRAWCOMMAND_H_
 #define SKDRAWCOMMAND_H_
 
@@ skipping 105 matching lines @@
     /* Converts a JSON representation of a command into a newly-allocated SkDrawCommand object. It
      * is the caller's responsibility to delete this object. This method may return null if an error
      * occurs.
      */
     static SkDrawCommand* fromJSON(Json::Value& command, UrlDataManager& urlDataManager);
 
     static const char* GetCommandString(OpType type);
 
     // Helper methods for converting things to JSON
     static Json::Value MakeJsonColor(const SkColor color);
+    static Json::Value MakeJsonColor4f(const SkColor4f& color);
     static Json::Value MakeJsonPoint(const SkPoint& point);
     static Json::Value MakeJsonPoint(SkScalar x, SkScalar y);
     static Json::Value MakeJsonRect(const SkRect& rect);
     static Json::Value MakeJsonIRect(const SkIRect&);
     static Json::Value MakeJsonMatrix(const SkMatrix&);
     static Json::Value MakeJsonScalar(SkScalar);
     static Json::Value MakeJsonPath(const SkPath& path);
     static Json::Value MakeJsonRegion(const SkRegion& region);
     static Json::Value MakeJsonPaint(const SkPaint& paint, UrlDataManager& urlDataManager);
 
@@ skipping 658 matching lines @@
     Json::Value toJSON(UrlDataManager& urlDataManager) const override;
     static SkTranslateZCommand* fromJSON(Json::Value& command, UrlDataManager& urlDataManager);
 
 private:
     SkScalar fZTranslate;
 
     typedef SkDrawCommand INHERITED;
 };
 #endif