[Mac] Show the contextual menu for page actions on Ctrl+Click.
[Mac] Show the contextual menu for page actions on Ctrl+Click.

BUG=32072
TEST=Ctrl+Click on a page action opens the context menu. A real right-click still does the same.

Review URL: http://codereview.chromium.org/894004

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@41533 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