Make deleted constructors take a const parameter in move-only type macro.

base/move.h

Index: base/move.h
diff --git a/base/move.h b/base/move.h
index 06f3f323723f68126542d3db3fed49487cb73bc6..93ee9f9dc3699a65a3e5a6a77c3453d42a57d0a4 100644
--- a/base/move.h
+++ b/base/move.h
@@ -219,8 +219,8 @@
 
 #define MOVE_ONLY_TYPE_WITH_MOVE_CONSTRUCTOR_FOR_CPP_03(type) \
  private: \
-  type(type&); \
-  void operator=(type&); \
+  type(const type&); \

[mgraczyk, 2015/04/07 01:10:31]

This allows move-only types to be used in STL containers, as long as the
container is never copied.

[Nico, 2015/04/07 01:36:47]

Only if your STL knows about move-only types, right?

[mgraczyk, 2015/04/07 05:32:59]

It may or may not work after this change if the library does not have move-aware
containers, but it will work in more situations with the change than without
(unless I missed something thinking about this).  Specifically, it will work in
the case implemented by move_unittest.cc, which is new to this CL.

+  void operator=(const type&); \
  public: \
   type&& Pass() WARN_UNUSED_RESULT { return static_cast<type&&>(*this); } \
   typedef void MoveOnlyTypeForCPP03; \