Makes UMA log upload work on non-Windows platforms.
Makes UMA log upload work on non-Windows platforms.

MemoryDetails::StartFetch() isn't implemented, thus it was never signalling that it was done fetching memory details.  Now it does.

BUG=15418
Review URL: http://codereview.chromium.org/172052

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@23602 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser