GitLab

Snapping which is intended to snap to existing scale during pinch
is not working. That is, because the snap ratio constant is wrong,
snapping logic do not work and might make extra tiling during pinch.

BUG=368203

Review URL: https://codereview.chromium.org/256343002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269563 0039d316-1c4b-4281-b951-d872f2087c98