Switch Dartium builds to shared build.
Switch Dartium builds to shared build.

This should align Dartium with Chromium.

Review URL: http://codereview.chromium.org/10117001

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@132825 0039d316-1c4b-4281-b951-d872f2087c98

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