Revert 41342 - Make bubble more tolerant of notification order when quitting.
Revert 41342 - Make bubble more tolerant of notification order when quitting.

BUG=http://crbug.com/37807

TEST=\
Run a debug build of Chrome like this:  
  NSZombieEnabled=YES xcodebuild/Debug/Chromium.app/Contents/MacOS/Chromium 
Open a bubble then CmdQ.
Make sure you don't see a line like this:
  20100310 19:24:20.381 Chromium[73024:903] *** [ChromeBrowserWindow removeChildWindow:]: message sent to deallocated instance 0x18f8b2a0
Repeat 20 times.


Review URL: http://codereview.chromium.org/839003

TBR=jrg@chromium.org
Review URL: http://codereview.chromium.org/902001

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@41350 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