Add chromeos::FlimflamManagerClient

Add chromeos::FlimflamManagerClient
Add FlimflamManagerClientTest
Add FlimflamClientHelper::AppendDataAsVariant

BUG=chromium-os:16557
TEST=unit_tests --gtest_filter="FlimflamManagerClientTest.*"

Review URL: https://chromiumcodereview.appspot.com/9950001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@131731 0039d316-1c4b-4281-b951-d872f2087c98
14 files changed