[SVGDom] Improve whitespace handling in style parsing

experimental/svg/model/SkSVGAttributeParser.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkParse.h"
 #include "SkSVGAttributeParser.h"
 #include "SkSVGTypes.h"
@@ skipping 134 matching lines @@
     }
 
     *c = v | 0xff000000;
     return true;
 }
 
 // https://www.w3.org/TR/SVG/types.html#DataTypeColor
 bool SkSVGAttributeParser::parseColor(SkSVGColorType* color) {
     SkColor c;
 
+    // consume preceding whitespace
+    this->parseWSToken();
+
     // TODO: rgb(...)
+    bool parsedValue = false;
     if (this->parseHexColorToken(&c) || this->parseNamedColorToken(&c)) {
         *color = SkSVGColorType(c);
-        return true;
+        parsedValue = true;
+
+        // consume trailing whitespace
+        this->parseWSToken();
     }
 
-    return false;
+    return parsedValue && this->parseEOSToken();
 }
 
 // https://www.w3.org/TR/SVG/types.html#DataTypeNumber
 bool SkSVGAttributeParser::parseNumber(SkSVGNumberType* number) {
     // consume WS
     this->parseWSToken();
 
     SkScalar s;
     if (this->parseScalarToken(&s)) {
         *number = SkSVGNumberType(s);
@@ skipping 173 matching lines @@
     }
 
     this->parseWSToken();
     if (!parsed || !this->parseEOSToken()) {
         return false;
     }
 
     *t = SkSVGTransformType(matrix);
     return true;
 }