Fix SkStrokeRec == to report true for all fills

include/core/SkStrokeRec.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 SkStrokeRec_DEFINED
 #define SkStrokeRec_DEFINED
 
@@ skipping 77 matching lines @@
      *
      *  src and dst may be the same path.
      */
     bool applyToPath(SkPath* dst, const SkPath& src) const;
 
     /**
      *  Apply these stroke parameters to a paint.
      */
     void applyToPaint(SkPaint* paint) const;
 
-    bool operator==(const SkStrokeRec& other) const {
-            return fWidth == other.fWidth &&
-                   fMiterLimit == other.fMiterLimit &&
-                   fCap == other.fCap &&
-                   fJoin == other.fJoin &&
-                   fStrokeAndFill == other.fStrokeAndFill;
+    /**
+     * Compare if two SkStrokeRecs have an equal effect on a path.
+     * Equal SkStrokeRecs produce equal paths. Equality of produced
+     * paths does not take the ResScale parameter into account.
+     */
+    bool hasEqualEffect(const SkStrokeRec& other) const {
+        if (!this->needToApply()) {
+            return this->getStyle() == other.getStyle();
+        }
+        return fWidth == other.fWidth &&
+               fMiterLimit == other.fMiterLimit &&
+               fCap == other.fCap &&
+               fJoin == other.fJoin &&
+               fStrokeAndFill == other.fStrokeAndFill;
     }
 
 private:
     void init(const SkPaint&, SkPaint::Style, SkScalar resScale);
 
     SkScalar        fResScale;
     SkScalar        fWidth;
     SkScalar        fMiterLimit;
     SkPaint::Cap    fCap;
     SkPaint::Join   fJoin;
     bool            fStrokeAndFill;
 };
 
 #endif