Remove 'USE(SKIA_TEXT)' compile-time flags.

We enable Skia everywhere for text rendering. This means we can safely drop
some fairly complex branching without web-visible effect.

Review URL: https://codereview.chromium.org/13929011

git-svn-id: svn://svn.chromium.org/blink/trunk@148458 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Chevron menu contains extra items when icons are enabled and docked to bottom.

The code that checks toolbar items fall into the second line was flaky.
It failed when item offset became 2px. Make it comparing the top offset to the
leftmost item height.

R=vsevik@chromium.org
BUG=231342

Review URL: https://codereview.chromium.org/14060008

git-svn-id: svn://svn.chromium.org/blink/trunk@148459 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove unused runtime setting timewithoutmousemovementbeforehidingcontrols

This setting existed in WebKit but Chromium never changed it from its default value. We're removing all such unchanging settings in Blink, along with their associated code.

R=abarth@chromium.org
BUG=226711

Review URL: https://codereview.chromium.org/13932013

git-svn-id: svn://svn.chromium.org/blink/trunk@148460 bbb929c8-8fbe-4397-9dbb-9b2b20218538