Revert r55952 (WebKit merge 65180:65259), many window crashes
Revert r55952 (WebKit merge 65180:65259), many window crashes

BUG=none
TEST=none
TBR=yutak


git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@55953 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