Added the framework for having canvas/recorder/picture record depth_set's.

include/core/SkLights.h

Index: include/core/SkLights.h
diff --git a/include/core/SkLights.h b/include/core/SkLights.h
index c5c54276a39597909ff53a0465a6e97fee5a8743..7e6b5f2ebff9a5886dbc884647c96d0459939d72 100644
--- a/include/core/SkLights.h
+++ b/include/core/SkLights.h
@@ -73,7 +73,7 @@ public:
         return fLights.count();
     }
 
-    const Light& light(int index) const {

[jvanverth1, 2016/07/07 19:08:35]

Should probably make these const again.

[vjiaoblack, 2016/07/07 19:17:55]

Done.

+    Light& light(int index) {
         return fLights[index];
     }