UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.86 Safari/537.36

Steps to reproduce the problem:
I want to preinstall the Google Dictionary extension from the Chrome Web Store into the fresh Chromium build (on the first run). I don't want to mess up with the Registry, so I read the official docs at https://www.chromium.org/administrators/pre-installed-extensions and I put an appropriate master_preferences file next to the chrome.exe file as stated:

{
 "extensions": {
    "settings": {
       "mgijmajocgfcbeboacabfgobmjgjcoja": {
          "location": 1,
          "manifest": {
             "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCuLnDgxFluQcqbOGrRJ2N7gYRj2DlTTnXa02Ho6IZNKm+Qv8cePlrsn/06irXeEPyikjoo9vokhsv54vV4Wb73x0a5K7s9pY2tuXnBzvik4Jru4KZozebnJTyYDAcjiyPc/ATrzlfQxlZiXIHBVj5KITnaFlR2SuxYkRVebPjUfwIDAQAB",
             "name": "Google Dictionary (by Google)",
             "permissions": [ "storage", "tabs" ],
			 "content_scripts":[ {
				  "all_frames": true,
				  "js": [ "content.min.js" ],
				  "matches": [ "\u003Call_urls>" ]
			 } ],
             "update_url": "http://clients2.google.com/service/update2/crx",
             "version": "0.0"
          },
		  "granted_permissions": {
			 "api": [ "storage", "tabs" ],
			 "scriptable_host": [ "\u003Call_urls>" ]
		  }
          "path": "mgijmajocgfcbeboacabfgobmjgjcoja\\0.0",
          "state": 1
       }
    }
 }
}

Then I run chrome.exe for the first time (user profile directory is empty), but the extension is not visible.

What is the expected behavior?
The Google Dictionary extension should be enabled by default.

What went wrong?
The extension does not appear in chrome://extensions and there is no output in the console.

WebStore page: Google Dictionary

Did this work before? N/A 

Chrome version: 59.0.3071.86  Channel: n/a
OS Version: 10.0
Flash Version: