Fix style

Change-Id: I7227b0eac126bf470ed50249a7809b845872983b
diff --git a/libs/hwui/SpotShadow.cpp b/libs/hwui/SpotShadow.cpp
index df068e6..3046fd5 100644
--- a/libs/hwui/SpotShadow.cpp
+++ b/libs/hwui/SpotShadow.cpp
@@ -870,7 +870,7 @@
 /**
  * Generate a triangle strip given two convex polygon
 **/
-void SpotShadow::generateTriangleStrip(bool isCasterOpaque, float /* shadowStrengthScale */,
+void SpotShadow::generateTriangleStrip(bool isCasterOpaque, float shadowStrengthScale,
         Vector2* penumbra, int penumbraLength, Vector2* umbra, int umbraLength,
         const Vector3* poly, int polyLength, VertexBuffer& shadowTriangleStrip,
         const Vector2& centroid) {