Move breakpad_mac* to breakpad component

BUG=247431
R=joi@chromium.org, rsesek@chromium.org, thakis@chromium.org
TBR=mark@chromium.org

Review URL: https://codereview.chromium.org/26856002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228167 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228167