GitLab

Move CellularDataPlan from network_library.* to its own files.
Move CellularDataInfo to CellularData conversion code to cros_network_functions.cc

BUG=chromium-os:16557
TEST=unit_tests --gtest_filter="CrosNetworkFunctionsLibcrosTest.CrosMonitorCellularDataPlan"

Review URL: https://chromiumcodereview.appspot.com/10207006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@133918 0039d316-1c4b-4281-b951-d872f2087c98