Add trace events for RecalculateStyles Timeline event

BUG=361045

Review URL: https://codereview.chromium.org/255863002

git-svn-id: svn://svn.chromium.org/blink/trunk@172641 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: do not use internals for highlight testing, use protocol instead.

R=apavlov@chromium.org

Review URL: https://codereview.chromium.org/257873002

git-svn-id: svn://svn.chromium.org/blink/trunk@172643 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Beautify timeline flamechart fonts.

NOTRY=true

Review URL: https://codereview.chromium.org/257843002

git-svn-id: svn://svn.chromium.org/blink/trunk@172645 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Fix 359994, Crash Report - v8::HandleScope::HandleScope

BUG=359994
NOTRY=true

Review URL: https://codereview.chromium.org/250793003

git-svn-id: svn://svn.chromium.org/blink/trunk@172646 bbb929c8-8fbe-4397-9dbb-9b2b20218538