Make windows menu accelerators work in owner-draw mode.
Make windows menu accelerators work in owner-draw mode.

For items added to context menus by extensions, we display the extension's
icon next to the top-level item. To display this icon, we use owner-draw
mode, and it turns out that our code was assuming that we didn't
need to tell windows about the labels of items in owner-draw mode. 

BUG=54497
TEST=Steps are outlined in the bug. Also all things menu related should be 
tested on windows.(wrench menu, context menus in web content, bookmark bar 
items, browser actions, etc.) 


Review URL: http://codereview.chromium.org/3402005

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@59560 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