Fix compile error on windows
Fix compile error on windows

static_cast an int64 to int to suppress warning. The value is known to be <17

TBR=

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@75046 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