Moved ambient lights out of SkLight's light array

samplecode/SampleShadowing.cpp

Index: samplecode/SampleShadowing.cpp
diff --git a/samplecode/SampleShadowing.cpp b/samplecode/SampleShadowing.cpp
index e27b4cff328d1a1b0059d5c3e610849c56f8bdd7..12ed3f6da3bf1a06b5a29762c25604e60a3da59e 100644
--- a/samplecode/SampleShadowing.cpp
+++ b/samplecode/SampleShadowing.cpp
@@ -23,7 +23,7 @@ public:
                                                      SkVector3::Make(0.2f, 0.05f, 1.0f)));
         builder.add(SkLights::Light::MakeDirectional(SkColor3f::Make(0.4f, 0.3f, 0.2f),
                                                      SkVector3::Make(0.05f, 0.2f, 1.0f)));
-        builder.add(SkLights::Light::MakeAmbient(SkColor3f::Make(0.4f, 0.4f, 0.4f)));
+        builder.setAmbientLightColor(SkColor3f::Make(0.4f, 0.4f, 0.4f));
         fLights = builder.finish();
 
         fTestRects[0].fColor = 0xFFEE8888;
@@ -203,8 +203,7 @@ protected:
                         SkVector3::Make(0.05f + (200.0f - x) * recipX,
                                         0.2f + (200.0f - y) * recipY,
                                         1.0f)));
-                builder.add(SkLights::Light::MakeAmbient(
-                        SkColor3f::Make(0.4f, 0.4f, 0.4f)));
+                builder.setAmbientLightColor(SkColor3f::Make(0.4f, 0.4f, 0.4f));
                 fLights = builder.finish();
 
                 fLightsChanged = true;