Add devtools trace events for Timline web socket ntofications

BUG=361045

Review URL: https://codereview.chromium.org/259823009

git-svn-id: svn://svn.chromium.org/blink/trunk@172759 bbb929c8-8fbe-4397-9dbb-9b2b20218538
TimelinePanel: move inspector/timeline-dfs.html test to inspector/timeline/ folder.

BUG=

Review URL: https://codereview.chromium.org/253783002

git-svn-id: svn://svn.chromium.org/blink/trunk@172760 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Oilpan: Move FontFace, FontFaceCache, and CSSFontFace to the managed heap.

R=wibling@chromium.org
BUG=

Review URL: https://codereview.chromium.org/233133003

git-svn-id: svn://svn.chromium.org/blink/trunk@172761 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Stop collecting async stacks while profiling.

BUG=367135
R=pfeldman, yurys, sergeyv

Review URL: https://codereview.chromium.org/257453005

git-svn-id: svn://svn.chromium.org/blink/trunk@172762 bbb929c8-8fbe-4397-9dbb-9b2b20218538