[Drive] Implement FakeDriveService::DeleteResource

BUG=240165
R=hashimoto@chromium.org

Review URL: https://codereview.chromium.org/114013002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240567 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 240567