Mac: Make cmd-shift-v an altenate shortcut for "paste and match style"
Mac: Make cmd-shift-v an altenate shortcut for "paste and match style"

nib changes: Duplicated the "paste and match style" menu and put it
below the existing item. Change the upper item's shortcut to
cmd-shift-v, marked the lower item to "alternate".

BUG=41472
TEST=Copy some html text, then go to a rich text editor, e.g. http://developer.yahoo.com/yui/examples/editor/simple_editor.html . Paste the text with cmd-v, it should look styled. Undo, paste with cmd-shift-v, it shouldn't. Undo, paste with cmd-shift-opt-v (the system default shortcut for this), it still shouldn't be styled. All three shortcuts should blink the "Edit" menu.

Review URL: http://codereview.chromium.org/6735045

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@80476 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