Use Closure instead of ScopedRunnableMethodFactory in NetworkMenuButton.

BUG=chromium-os:22024
TEST=tests pass.
Review URL: http://codereview.chromium.org/8351021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@107080 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed