Add Remoting webapp to chrome_official_builder target.
Add Remoting webapp to chrome_official_builder target.

BUG=87632
TEST=Official Windows Chrome logs show Remoting webapp being built.

Review URL: http://codereview.chromium.org/7461144

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@95682 0039d316-1c4b-4281-b951-d872f2087c98

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