When deleting a path, remove it from the path cache.
Bug #4170585

Change-Id: I6be4d251ceb908c89afe49c2ff85c05f36c73b70
diff --git a/libs/hwui/ShapeCache.h b/libs/hwui/ShapeCache.h
index 859e503..b5cc29c 100644
--- a/libs/hwui/ShapeCache.h
+++ b/libs/hwui/ShapeCache.h
@@ -89,8 +89,11 @@
         join = SkPaint::kDefault_Join;
         cap = SkPaint::kDefault_Cap;
         style = SkPaint::kFill_Style;
-        miter = 4.0f;
-        strokeWidth = 1.0f;
+        float v = 4.0f;
+        miter = *(uint32_t*) &v;
+        v = 1.0f;
+        strokeWidth = *(uint32_t*) &v;
+        pathEffect = NULL;
     }
 
     ShapeCacheEntry(const ShapeCacheEntry& entry):