GitLab

Replace directly use of DriveIntegrationService to drive::util::Get{DriveService,FileSystem}ByProfile.

As preparation to start returning DriveIntegrationService instance always by
DriveIntegrationServiceFactory::GetForProfile, this reduces its direct
usage.

BUG=284972
TEST=Ran unit_tests
R=satorux@chromium.org

Review URL: https://codereview.chromium.org/23531027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221367 0039d316-1c4b-4281-b951-d872f2087c98