Android's UI guide line. This modification is based on leland's mock.
See http://b/issue?id=1748136 for more information.
Put ProgressNumber left side, next to ProgressPercentage.
Make ProgressPercentage Bold.
Put ProgressNumber and ProgressPercentage near to the ProgressBar
above. This is same as the design of Market application.
Enable ProgressDialog change the ProgressNumber format. This is hidden
since the interface is premature.
Original author: dmiyakawa
Merged from: //branches/cupcake/...
Automated import of CL 144182
e9c08056fa