Put headers in right order.  Ensure WebKit is initialized everywhere necessary.  Remove unnecessary V8::IsDead() check (IdleNotification() already checks IsRunning(), which is mutually exclusive with IsDead()).
Put headers in right order.  Ensure WebKit is initialized everywhere necessary.  Remove unnecessary V8::IsDead() check (IdleNotification() already checks IsRunning(), which is mutually exclusive with IsDead()).

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/265019

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@28360 0039d316-1c4b-4281-b951-d872f2087c98

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