GitLab

TEST=manual; verify Docs, Sheets, and Slides work with regard to whitespace, key echo, etc when braille mode is off.
BUG=690635,690636,618099
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2740793002
Cr-Commit-Position: refs/heads/master@{#456133}