Use "= delete" for DISALLOW_COPY and DISALLOW_ASSIGN.

base/macros.h

Index: base/macros.h
diff --git a/base/macros.h b/base/macros.h
index d9043281cf5aba6b6c6ac6b3ca5e449048aa1aa7..0325e7416510f40c700223119922b785b26bf96e 100644
--- a/base/macros.h
+++ b/base/macros.h
@@ -13,13 +13,13 @@
 #include <stddef.h>  // For size_t.
 #include <string.h>  // For memcpy.
 
-// Put this in the private: declarations for a class to be uncopyable.
+// Put this in the declarations for a class to be uncopyable.
 #define DISALLOW_COPY(TypeName) \
-  TypeName(const TypeName&)
+  TypeName(const TypeName&) = delete
 
-// Put this in the private: declarations for a class to be unassignable.
+// Put this in the declarations for a class to be unassignable.
 #define DISALLOW_ASSIGN(TypeName) \
-  void operator=(const TypeName&)
+  void operator=(const TypeName&) = delete
 
 // A macro to disallow the copy constructor and operator= functions
 // This should be used in the private: declarations for a class