Makes TooltipController not cache mouse state

Problem is on desktop aura TooltipController won't see all events, and
can easily get confused. For example, clicking on a the caption and
dragging a window does not result in a mouse released. Similarly tab
dragging creates windows with the mouse already down.

BUG=306048
TEST=none
R=varunjain@chromium.org, varun@chromium.org

Review URL: https://codereview.chromium.org/26906003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228760 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228760
remove IdentityAPI::Initialize

It used to be unsafe to instantiate the ProfileOAuth2TokenService in
the IdentityAPI constructor, so we had a separate Initialize method to
do so. This change removes the extra method, since r212604 made PO2TS
initialization safe.

BUG=258140

Review URL: https://codereview.chromium.org/27205002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228761 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228761
Add PrerenderLocalPredictorEvent enum values.
R=isherman@chromium.org, jar@chromium.org, mpearson@chromium.org, asvitkine@chromium.org

Review URL: https://codereview.chromium.org/27256005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228762 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228762