[SyncFS] Skip tracker update to sync-root

BUG=240165

Review URL: https://codereview.chromium.org/97833002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238038 0039d316-1c4b-4281-b951-d872f2087c98
Blink roll 162934:162937

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=162935:162937&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/98033002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238039 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238040 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238040
Delete unused arguments for candidate window.

BUG=N/A

Review URL: https://codereview.chromium.org/96083004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238041 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238041