Use default SkCanvas::save() flags.

This CL removes explicit SkCanvas::SaveFlags from Blink: they are being
deprecated in Skia, and we are only passing defaults anyway.

R=schenney@chromium.org, reed@google.com, senorblanco@chromium.org

Review URL: https://codereview.chromium.org/212643013

git-svn-id: svn://svn.chromium.org/blink/trunk@170189 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: [Console] Display timestamps when the Console timestamps setting is re-enabled

Drive-by: Do not subscribe each message to the timestamp display setting but rather the ConsoleMessageView

R=eustas, vsevik
BUG=357175
NOTRY=true

Review URL: https://codereview.chromium.org/214693005

git-svn-id: svn://svn.chromium.org/blink/trunk@170190 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: follor up to r170181, fixing inspector/layers/layer-scroll-rects-get.html.
TBR=vsevik

Review URL: https://codereview.chromium.org/214693006

git-svn-id: svn://svn.chromium.org/blink/trunk@170191 bbb929c8-8fbe-4397-9dbb-9b2b20218538