Fix SkRRect isEmpty assert

src/core/SkRRect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRRect.h"
 #include "SkMatrix.h"
 
@@ skipping 445 matching lines @@
         if (0 != fRadii[i].fX && 0 != fRadii[i].fY) {
             allCornersSquare = false;
         }
     }
     bool patchesOfNine = radii_are_nine_patch(fRadii);
 
     switch (fType) {
         case kEmpty_Type:
             SkASSERT(fRect.isEmpty());
             SkASSERT(allRadiiZero && allRadiiSame && allCornersSquare);
 

[robertphillips, 2014/04/03 12:35:55]

I don't think this is required at all. The preceding fRect.isEmpty is already
checking this.

-            SkASSERT(0 == fRect.fLeft && 0 == fRect.fTop &&
-                     0 == fRect.fRight && 0 == fRect.fBottom);
+            SkASSERT(fRect.fLeft == fRect.fRight && fRect.fTop == fRect.fBottom);
             break;
         case kRect_Type:
             SkASSERT(!fRect.isEmpty());
             SkASSERT(allRadiiZero && allRadiiSame && allCornersSquare);
             break;
         case kOval_Type:
             SkASSERT(!fRect.isEmpty());
             SkASSERT(!allRadiiZero && allRadiiSame && !allCornersSquare);
 
             for (int i = 0; i < 4; ++i) {
@@ skipping 16 matching lines @@
             SkASSERT(!patchesOfNine);
             break;
         case kUnknown_Type:
             // no limits on this
             break;
     }
 }
 #endif // SK_DEBUG
 
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