Revert 184179

This is trigger a latent issue in views which results in a memory leak
each time a Widget is destroyed.

> Update scoped_ptr<T>::reset() to more closely match std::unique_ptr<T>.
> 
> Remove the no-op behavior of a scoped_ptr "self-reset", and update the
> reset() method to detect problematic dependencies on the sequence of
> events. Eventually, reset() will be updated to exactly match the
> implementation of std::unique_ptr<T> by setting data_.ptr to the new
> value before deleting the old value.
> 
> However, this will expose latent bugs where a destructor invoked
> transitively by reset() attempts to dereference the same scoped_ptr.
> Relying on the value of get() in this instance will dispatch calls to
> the incorrect object. As a temporary measure to detect this class of
> bugs, set data_.ptr to NULL during deletion so that it results in a
> crash.
> 
> BUG=162971,176091
> 
> Review URL: https://codereview.chromium.org/12223113

TBR=dcheng@chromium.org
Review URL: https://codereview.chromium.org/12317084

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@184255 0039d316-1c4b-4281-b951-d872f2087c98

0 files changed, 0 insertions, 0 deletions