Just because we want to destroy a pointer somewhere other than a destructor doesn't mean we can't u…

Just because we want to destroy a pointer somewhere other than a destructor doesn't mean we can't use a scoped_ptr for it.  This saves an explicit initializer and makes the code parallel to the ScopedCOMInitializers I'll be adding next.

BUG=none
TEST=none
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=159556

[Peter Kasting, 2012-09-29 21:47:19]

ping

[cpu_(ooo_6.6-7.5), 2012-10-01 20:11:11]

lgtm

[Peter Kasting, 2012-10-01 20:35:25]

sky, can you OWNERS r+?

[sky, 2012-10-01 21:15:36]

LGTM