Moves some files into mojo/common

BUG=none
TEST=none
[email protected], [email protected]

Review URL: https://codereview.chromium.org/64973002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233680 0039d316-1c4b-4281-b951-d872f2087c98
11 files changed