Chrome Version       : 55.0.2883.87
OS Version: 10.0
URLs (if applicable) :

What steps will reproduce the problem?
1. Create a manifest file with the 'identity' permission set.
2. Create a content script the calls a function on the 'chrome.identity' module.
3. Load the un-packaged extension and test.
4. Open dev console, and inspect 'chrome' namespace object - identity module is non-existent.

What is the expected result?
The ability to call the methods on the chrome.identity javascript module from within a content script without error.

What happens instead of that?
TypeError reported in the console with "chrome.identity" undefined.

Please provide any additional information below. Attach a screenshot if
possible.

See attached test extension (zipped or packed .crx).

UserAgentString: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36