Send ShChange notifications to cause icon refreshes when updating shortcuts.
Send ShChange notifications to cause icon refreshes when updating shortcuts.

BUG=78398
TEST=Install version 11.0.696.0 or earlier, then install 11.0.696.36 or later. Observe the desktop icons being updated.
Review URL: http://codereview.chromium.org/6870008

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@81751 0039d316-1c4b-4281-b951-d872f2087c98

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