DevTools: polish the MQ ruler, move zoom controls to the top.

Review URL: https://codereview.chromium.org/581133002

git-svn-id: svn://svn.chromium.org/blink/trunk@182327 bbb929c8-8fbe-4397-9dbb-9b2b20218538
3 files changed
tree: 650afbd61a3669ca7b8a59ee4baf934083beade3
  1. third_party/