When compositor is enabled, do not do backing store updates. BUG=52517 TEST=enable compositor and resize the window; there should be no continuous redraws
When compositor is enabled, do not do backing store updates.
BUG=52517
TEST=enable compositor and resize the window; there should be no continuous redraws

Review URL: http://codereview.chromium.org/3204004

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@57359 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