Add concept of an options page to Extensions.


BUG=23801
TEST=Create an extension with an "options_page" entry in its manifest with a value the name of a html file in the extension dir.
Load that extension and go to chrome://extensions, there should be an "Options" button that takes you to the page specified in the manifest.


Review URL: http://codereview.chromium.org/271114

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@29297 0039d316-1c4b-4281-b951-d872f2087c98
10 files changed