break out of cubic stroker loop on degenerate case

src/core/SkStroke.cpp

Index: src/core/SkStroke.cpp
diff --git a/src/core/SkStroke.cpp b/src/core/SkStroke.cpp
index 1a44a3a19f6654aaf8cf093e492df4db8ad5d6f7..ba7b7d3c8e9d2cb00e76814948b75f21559fe1c7 100644
--- a/src/core/SkStroke.cpp
+++ b/src/core/SkStroke.cpp
@@ -1412,11 +1412,11 @@ void SkPathStroker::cubicTo(const SkPoint& pt1, const SkPoint& pt2,
         SkQuadConstruct quadPts;
         this->init(kOuter_StrokeType, &quadPts, lastT, nextT);
         if (!this->cubicStroke(cubic, &quadPts)) {

[reed1, 2015/02/23 15:44:12]

Can we add a brief comment as to why this might occur, and what the resulting
outer/inner will be as a result?

[caryclark, 2015/02/23 17:10:47]

Done.

-            return;
+            break;
         }
         this->init(kInner_StrokeType, &quadPts, lastT, nextT);
         if (!this->cubicStroke(cubic, &quadPts)) {
-            return;
+            break;
         }
         lastT = nextT;
     }