DevTools: fix String.prototype.hashCode() to produce a SMI, not a double

String.prototype.hashCode() used to return Infinity for large strings due
to numbers promoted to double and hence not subject to modulo 2^32
arithmetics that hashCode() apparently expected.

BUG=

Review URL: https://codereview.chromium.org/375443003

git-svn-id: svn://svn.chromium.org/blink/trunk@177597 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove dirtyLinesFromChangedChild from updateMarkerLocation

This patch removes the unnecessary dirtyLinesFromChangedChild call
from RenderListItem::updateMarkerLocation.

No new tests as this was not needed.

R=leviw
BUG=391009

Review URL: https://codereview.chromium.org/375433003

git-svn-id: svn://svn.chromium.org/blink/trunk@177598 bbb929c8-8fbe-4397-9dbb-9b2b20218538