fix scons build
fix scons build

DerivedSources.make changed, so we need to match it's change.
http://codereview.chromium.org/21351/diff/13/15

TBR=brettw

Review URL: http://codereview.chromium.org/21356


git-svn-id: http://src.chromium.org/svn/trunk/src@9771 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b7a85d3b2636d1289a7fe2b2fdfc892c741e95ce
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser