Revert 69401 (breaks chromiumos tests) - Use WINDOW instead of BUBBLE for the throbber widget.
Revert 69401 (breaks chromiumos tests) - Use WINDOW instead of BUBBLE for the throbber widget.

This fix solves the problem with the throbber widget is always shown on
the top of the windows.

BUG=chromium-os:9770
TEST=manaual

Review URL: http://codereview.chromium.org/5881002

TBR=altimofeev@chromium.org
Review URL: http://codereview.chromium.org/5944003

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@69406 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,ropik/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,adobe/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,ropik/chromium,adobe/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,yitian134/chromium,gavinp/chromium