GitLab

Supports a new method {ui,views}::InputMethod::IsCandidatePopupOpen(),
which returns true if a candidate window is open.

BUG=245578
TEST=Test manually.

Review URL: https://chromiumcodereview.appspot.com/17112021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@207858 0039d316-1c4b-4281-b951-d872f2087c98