Remove ProfileHeader.maxJSObjectId from the protocol

Value of the propery is calculated based on the heap snapshot data and there is no need to pass it separately from the backend.

BUG=324769
R=alph@chromium.org

Review URL: https://codereview.chromium.org/137203013

git-svn-id: svn://svn.chromium.org/blink/trunk@165833 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[SVG] SVGAnimatedPreserveAspectRatio migration to new SVG property impl.

This CL replaces SVGAnimatedPreserveAspectRatio class with NewSVGProperty implementation.

For details, see design doc: https://docs.google.com/document/d/1bg7CUyUszqdwmENY3JX6_PoQD6uHRCNcRPJMlC4qlkw/edit?usp=sharing

BUG=308818

Review URL: https://codereview.chromium.org/131413014

git-svn-id: svn://svn.chromium.org/blink/trunk@165834 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Timeline: make hover on event dividers usable

- bring event dividers on top of CPU bars, so it's easier to hover;
- add time since recording started to title.

R=pfeldman@chromium.org

Review URL: https://codereview.chromium.org/145643004

git-svn-id: svn://svn.chromium.org/blink/trunk@165835 bbb929c8-8fbe-4397-9dbb-9b2b20218538