sk_sp for gpu.

include/core/SkRefCnt.h

Index: include/core/SkRefCnt.h
diff --git a/include/core/SkRefCnt.h b/include/core/SkRefCnt.h
index c45ed6bbf06f0d261f6efde6b696da538166b0dd..3227e6874066f7f60fdfd4536df8b6cba153e087 100644
--- a/include/core/SkRefCnt.h
+++ b/include/core/SkRefCnt.h
@@ -264,8 +264,8 @@ template <typename T> class sk_sp {
 public:
     using element_type = T;
 
-    sk_sp() : fPtr(nullptr) {}
-    sk_sp(std::nullptr_t) : fPtr(nullptr) {}
+    constexpr sk_sp() : fPtr(nullptr) {}
+    constexpr sk_sp(std::nullptr_t) : fPtr(nullptr) {}

[bungeman-skia, 2016/06/08 18:22:16]

This allows sk_sp<T>() to be a compile time static. unique_ptr also does this.

[bsalomon, 2016/06/08 19:50:50]

w00t

 
     /**
      *  Shares the underlying object by calling ref(), so that both the argument and the newly