Move Extension and PermissionsData to extensions/common.

BUG=298586
[email protected], [email protected], [email protected]
[email protected]

Review URL: https://codereview.chromium.org/15239002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235462 0039d316-1c4b-4281-b951-d872f2087c98
568 files changed