Redo r113722 - Add Pass(), which implements move semantics, to scoped_ptr, scoped_array....
Add Pass(), which implements move semantics, to scoped_ptr, scoped_array, and scoped_ptr_malloc.
This modification to the scopers implements the "moveable but not copyable" semantics that were introduced in C++11's unique_ptr<>.
With this, is now possible to use scopers as an argument type or a return type. This signifies, in the type system, transfer of ownership into a function or out of a function respectively. Calling, or returning such a function MUST use the temporary resultin
This distinction makes it possible to avoid the implicit ownership transfer issues of auto_ptr, but still allow us to have compiler enforced ownership transfer.
Also adds a Passed() helper that allows using a scoper with Bind().
BUG=96118
TEST=new unittests
Original review URL: http://codereview.chromium.org/8774032
Review URL: http://codereview.chromium.org/8897005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@113922 0039d316-1c4b-4281-b951-d872f2087c98
CrOS-Libchrome-Original-Commit: 6a849971a8b6a053b6733c0cc2b117aa484c15e8
9 files changed