Fix oilpan compilation after css parser changes.

TBR=haraken@chromium.org, oilpan-reviews@chromium.org, wibling@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/220763005

git-svn-id: svn://svn.chromium.org/blink/trunk@170556 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: [CodeMirror] Implement "select next occurrence" functionality

This patch adds a Ctrl-D shortcut to the devtools editor which selects
the next occurrence of word or selection. Implementation is based
on CodeMirror v4 multiple cursor capabilities.

BUG=356878

Review URL: https://codereview.chromium.org/219583002

git-svn-id: svn://svn.chromium.org/blink/trunk@170557 bbb929c8-8fbe-4397-9dbb-9b2b20218538