path ops -- rewrite angle sort

tests/PathOpsCubicToQuadsTest.cpp

Index: tests/PathOpsCubicToQuadsTest.cpp
===================================================================
--- tests/PathOpsCubicToQuadsTest.cpp	(revision 9425)
+++ tests/PathOpsCubicToQuadsTest.cpp	(working copy)
@@ -20,7 +20,7 @@
         double precision = cubic.calcPrecision();
         SkTDArray<SkDQuad> quads;
         CubicToQuads(cubic, precision, quads);
-        if (quads.count() != 1) {
+        if (quads.count() != 1 && quads.count() != 2) {
             SkDebugf("%s [%d] cubic to quadratics failed count=%d\n", name, static_cast<int>(index),
                     quads.count());
         }
@@ -36,11 +36,11 @@
         double precision = cubic.calcPrecision();
         SkTDArray<SkDQuad> quads;
         CubicToQuads(cubic, precision, quads);
-        if (quads.count() != 1) {
+        if (quads.count() != 1 && quads.count() != 2) {
             SkDebugf("%s [%d] cubic to quadratics failed count=%d\n", name, static_cast<int>(index),
                     quads.count());
         }
-        REPORTER_ASSERT(reporter, quads.count() == 1);
+        REPORTER_ASSERT(reporter, quads.count() <= 2);
     }
 }