[IME] Makes sure the different ime observer instances can be created under different profile. Otherwise, XKB extension's input view page cannot listen to the IME events because it's firstly loaded under system profile before user login.

BUG=353034,354322
TEST=None
TBR= yukishiino@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=258240

Review URL: https://codereview.chromium.org/196573039

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@258447 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed