Improve wheel scrolling on Linux.
Improve wheel scrolling on Linux.

This was driving me nuts, so I just fixed it.
We now behave more or less like Firefox.

Review URL: http://codereview.chromium.org/28140

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@10394 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