Replace static/native-desktop-only BrowserList::const_reverse_iterator by desktop specific reverse iterators as appropriate.

BUG=129187

Review URL: https://codereview.chromium.org/12262019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182463 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed