Delete ibus_object and move ibus_text to chromeos/ime.

This patch focuses on the deletion and relocation keeping the logic as-is.

BUG=275262

Review URL: https://codereview.chromium.org/61003004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235726 0039d316-1c4b-4281-b951-d872f2087c98
[SyncFS] Add DriveUploader to SyncEngineContext

BUG=240165
NOTRY=true

Review URL: https://codereview.chromium.org/73613003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235727 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235727