Add enough parameters to support pulling chrome from a different source.
Add enough parameters to support pulling chrome from a different source.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7330014

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@94803 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build