remove extra space and fix typo (#628)
remove extra space and fix typo (#628)


GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-extensions-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-app-samples,GoogleChrome/chrome-extensions-samples