path ops -- handle non-finite numbers

src/pathops/SkPathOpsCommon.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 "SkOpEdgeBuilder.h"
 #include "SkPathOpsCommon.h"
 #include "SkPathWriter.h"
 #include "SkTSort.h"
@@ skipping 381 matching lines @@
         match them up
         connect closest
         reassemble contour pieces into new path
     */
 void Assemble(const SkPathWriter& path, SkPathWriter* simple) {
 #if DEBUG_PATH_CONSTRUCTION
     SkDebugf("%s\n", __FUNCTION__);
 #endif
     SkTArray<SkOpContour> contours;
     SkOpEdgeBuilder builder(path, contours);
+    builder.setAllowOpenContours(true);
     builder.finish();
     int count = contours.count();
     int outer;
     SkTDArray<int> runs;  // indices of partial contours
     for (outer = 0; outer < count; ++outer) {
         const SkOpContour& eContour = contours[outer];
         const SkPoint& eStart = eContour.start();
         const SkPoint& eEnd = eContour.end();
 #if DEBUG_ASSEMBLE
         SkDebugf("%s contour", __FUNCTION__);
@@ skipping 162 matching lines @@
             }
         }
     } while (rIndex < count);
 #if DEBUG_ASSEMBLE
     for (rIndex = 0; rIndex < count; ++rIndex) {
        SkASSERT(sLink[rIndex] == SK_MaxS32);
        SkASSERT(eLink[rIndex] == SK_MaxS32);
     }
 #endif
 }