Fix GrShape to preserve inverseness of rrects for strokes but not dashes.

src/gpu/GrShape.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 GrShape_DEFINED
 #define GrShape_DEFINED
 
@@ skipping 275 matching lines @@
         if (Type::kPath != fType) {
             fPath.reset();
             fInheritedKey.reset(0);
         }
     }
 
     void attemptToReduceFromRRect() {
         SkASSERT(Type::kRRect == fType);
         SkASSERT(!fInheritedKey.count());
         if (fRRectIsInverted) {
-            if (!fStyle.hasNonDashPathEffect()) {
-                SkStrokeRec::Style recStyle = fStyle.strokeRec().getStyle();
-                if (SkStrokeRec::kStroke_Style == recStyle ||
-                    SkStrokeRec::kHairline_Style == recStyle) {
-                    // stroking ignores the path fill rule.
-                    fRRectIsInverted = false;
-                }
+            if (fStyle.isDashed()) {
+                // Dashing ignores the inverseness (currently). skbug.com/5421
+                fRRectIsInverted = false;
             }
         } else if (fRRect.isEmpty()) {
             fType = Type::kEmpty;
         }
     }
 
     static Type AttemptToReduceFromPathImpl(const SkPath& path, SkRRect* rrect,
                                             SkPath::Direction* rrectDir, unsigned* rrectStart,
                                             bool* rrectIsInverted, const SkPathEffect* pe,
                                             const SkStrokeRec& strokeRec);
@@ skipping 46 matching lines @@
     Type                        fType;
     SkRRect                     fRRect;
     SkPath::Direction           fRRectDir;
     unsigned                    fRRectStart;
     bool                        fRRectIsInverted;
     SkTLazy<SkPath>             fPath;
     GrStyle                     fStyle;
     SkAutoSTArray<8, uint32_t>  fInheritedKey;
 };
 #endif