Fix vertex count estimate in GrTessellator.

When we start a new MonotonePoly due to a handedness change, we don't need to
increase the vertex count, since that edge (and vertex) has already been
accounted for in the previous MonotonePoly.

This was not a correctness issue, but was causing us to allocate
extra vertices which would go unused.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2146063002

Review-Url: https://codereview.chromium.org/2146063002

1 files changed, 0 insertions, 1 deletions

diff --git a/src/gpu/GrTessellator.cpp b/src/gpu/GrTessellator.cpp
index fc09c0c649..cefe4cd65b 100644
--- a/src/gpu/GrTessellator.cpp
+++ b/src/gpu/GrTessellator.cpp
@@ -435,7 +435,6 @@ struct Poly {
                 m->fPrev = fTail;
                 fTail->fNext = m;
                 fTail = m;
-                fCount += 2;
             }
         }
         return poly;