Use absolute paths for testing using google-chrome

package.json

@@ -39,8 +39,8 @@
     "watch:chrome:premium": "chokidar --silent 'dist/**/*.js' --command 'npm run --silent build:chrome:premium'",
     "watch:webextension:free": "chokidar --silent 'dist/**/*.js' --command 'npm run --silent build:webextension:free'",
     "watch:webextension:premium": "chokidar --silent 'dist/**/*.js' --command 'npm run --silent build:webextension:premium'",
-    "run:chrome:free": "mkdirp package/profiles/chrome/ && google-chrome --no-first-run --enable-logging=stderr --v=0 --enable-extension-activity-logging --error-console --user-data-dir=package/profiles/chrome/ --load-extension=package/chrome/",
-    "run:chrome:premium": "mkdirp package/profiles/chrome-premium/ && google-chrome --no-first-run --enable-logging=stderr --v=0 --enable-extension-activity-logging --error-console --user-data-dir=package/profiles/chrome-premium/ --load-extension=package/chrome-premium/",
+    "run:chrome:free": "mkdirp package/profiles/chrome/ && google-chrome --no-first-run --enable-logging=stderr --v=0 --enable-extension-activity-logging --error-console --user-data-dir=\"${PWD}/package/profiles/chrome/\" --load-extension=\"${PWD}/package/chrome/\"",
+    "run:chrome:premium": "mkdirp package/profiles/chrome-premium/ && google-chrome --no-first-run --enable-logging=stderr --v=0 --enable-extension-activity-logging --error-console --user-data-dir=\"${PWD}/package/profiles/chrome-premium/\" --load-extension=\"${PWD}/package/chrome-premium/\"",
     "run:firefox:free": "web-ext --source-dir=package/webextension/ run --browser-console --start-url 'https://www.wikipedia.org/'",
     "run:firefox:premium": "web-ext --source-dir=package/webextension-premium/ run --browser-console --start-url 'https://www.wikipedia.org/'",
     "prepackage": "npm run --silent rebuild && npm run --silent test && npm run --silent lint && npm run --silent messages:count",