Make sure to check for in-progress downloads when quitting. Adds back in code removed during quit refactoring. BUG=41675 TEST=quit while downloading, can cancel and quit app, as well as cancel the quit to allow the download to complete. When download completes, closing all windows shouldn't quit (normal behavior). Review URL: http://codereview.chromium.org/1746013
Make sure to check for in-progress downloads when quitting. Adds back in code
removed during quit refactoring.
BUG=41675
TEST=quit while downloading, can cancel and quit app, as well as cancel the quit to allow the download to complete. When download completes, closing all windows shouldn't quit (normal behavior).
Review URL: http://codereview.chromium.org/1746013

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@45832 0039d316-1c4b-4281-b951-d872f2087c98

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