GitLab

This cl:
* Merges in new strings needed by AppRemoting
* Updates some shared strings to make them generic (to
  remove the need for a separate AppRemoting resources target)
* Fixes incorrectly annotated i18n-content strings so that our
  verify_resources script can detect them properly.

Strings that were genericized:
* IDS_DESCRIPTION_AUTHORIZE
* IDS_ERROR_BAD_PLUGIN_VERSION
* IDS_ERROR_INCOMPATIBLE_PROTOCOL
* IDS_ERROR_MISSING_PLUGIN

General strings that were added:
* IDS_ERROR_NOT_AUTHORIZED - Will soon be used by fromHttpStatus

New strings:
* IDS_ERROR_APP_NOT_AUTHORIZED - Used by AppRemoting instead
  of the generic string to provide more info to the user.
* IDS_PRODUCT_NAME_APP_STREAMING - Used instead of IDS_PRODUCT_NAME
  so that we don't need a separate resources target for AppRemoting.
* ...many more, including those that will be used by the host
  code when it is merged...

BUG=

Review URL: https://codereview.chromium.org/873883002

Cr-Commit-Position: refs/heads/master@{#313004}