Revert of experiment with zero-length round capped line segments

src/utils/SkDashPath.cpp

Index: src/utils/SkDashPath.cpp
diff --git a/src/utils/SkDashPath.cpp b/src/utils/SkDashPath.cpp
index de249f6fff3b747066cfc38080b453b3342b0e9f..4b2b33d2c4a1bf2ced56dcdd3d13ddf4772a0f29 100644
--- a/src/utils/SkDashPath.cpp
+++ b/src/utils/SkDashPath.cpp
@@ -272,7 +272,7 @@
         while (distance < length) {
             SkASSERT(dlen >= 0);
             addedSegment = false;
-            if (is_even(index) && !skipFirstSegment) {
+            if (is_even(index) && dlen > 0 && !skipFirstSegment) {
                 addedSegment = true;
                 ++segCount;