Don't populate WebDropData with file URLs when dragging files.
Don't populate WebDropData with file URLs when dragging files.

This is the Linux patch. There will be separate patches for Windows and Linux.

BUG=42685
TEST=none

Review URL: http://codereview.chromium.org/2123014

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@48083 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