Revert hack introduced in r84247 to support Chrome Frame net tests.

BUG=316496
R=ananta@chromium.org,finnur@chromium.org

Review URL: https://codereview.chromium.org/138213003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245160 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245160
Inject GPUDataManager support into ash to abstract a content dependency.

http://crbug.com/332504

R=oshima@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=245010

Review URL: https://codereview.chromium.org/138223004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245161 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245161