Add vulcanize to tools.

Add the vulcanize node script to tools which will be used to combine
polymer elements during the chrome build process. Polymer is used (for
example) with the PDF extension.

R=cmp@chromium.org

Review URL: https://codereview.chromium.org/125733002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243708 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243708
Move Find Operations from RenderViewHost to WebContents

BUG=330843

Review URL: https://codereview.chromium.org/128453002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243709 0039d316-1c4b-4281-b951-d872f2087c98
[Mac] Check for guest mode correctly before opening the user manager.

BUG=NONE
TBR=asvitkine@chromium.org
TEST=With the --new-profile-management flag, start Chrome. Select
"Browse as guest" from the avatar menu. From the guest browser, select
"View all people" from the avatar menu. This shouldn't crash and should
show the User Manager.

Review URL: https://codereview.chromium.org/129103003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243710 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243710