Moved ambient lights out of SkLight's light array

src/core/SkShadowShader.h

Index: src/core/SkShadowShader.h
diff --git a/src/core/SkShadowShader.h b/src/core/SkShadowShader.h
index 3263950a93910691b6fd985256a7d0b81d8107f0..1111445b4f74feb867d010c6506f51d67f037142 100644
--- a/src/core/SkShadowShader.h
+++ b/src/core/SkShadowShader.h
@@ -28,7 +28,7 @@ public:
 
     // The shadow shader supports any number of ambient lights, but only
     // 4 non-ambient lights (currently just refers to directional lights).

[robertphillips, 2016/08/26 17:31:29]

I think the old version was more descriptive

-    static constexpr int kMaxNonAmbientLights = 4;
+    static constexpr int kMaxLights = 4;
 
     SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
 };