contacts: Strip Unicode byte order marks from strings.

The feeds that we get from the Contacts API are UTF-8, but
they're littered with BOM characters.  This change makes
GDataContactsService strip out these characters when
initializing contacts::Contact objects.

I'm also merging a few related browser tests together so
that the new test that I'm adding won't increase the total
running time.

BUG=128805
TEST=none


Review URL: https://chromiumcodereview.appspot.com/10829435

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@152389 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed