anchor.diff:     * A code indicating that a specified permission is not supported on Chrome OS.
      */
     static const ManifestWarningCode PERMISSION_IMPLIES_UNSUPPORTED_HARDWARE =
  -      const ManifestWarningCode(
  -          'PERMISSION_IMPLIES_UNSUPPORTED_HARDWARE',
  -          "Permission exists without corresponding hardware tag `<uses-feature " +
  -              "android:name=\"{0}\"  android:required=\"false\">`.",
  -          correction:
  -              "Try adding the uses-feature with required=\"false\" attribute value.");
  +      const ManifestWarningCode('PERMISSION_IMPLIES_UNSUPPORTED_HARDWARE',
  +          "Permission makes app incompatible for Chrome OS, consider adding optional {0} feature tag, ",
  +          correction: " Try adding `<uses-feature " +
  +              "android:name=\"{0}\"  android:required=\"false\">`.");
   
     /**
      * A code indicating that the camera permissions is not supported on Chrome OS.
      */
  -  static const ManifestWarningCode CAMERA_PERMISSIONS_INCOMPATIBLE =
  -      const ManifestWarningCode(
  -          'CAMERA_PERMISSIONS_INCOMPATIBLE',
  -          "Permission exists without corresponding hardware `<uses-feature " +
  -              "android:name=\"android.hardware.camera\"  android:required=\"false\">` " +
  -              "`<uses-feature " +
  -              "android:name=\"android.hardware.camera.autofocus\"  android:required=\"false\">`.",
  -          correction:
  -              "Try adding the uses-feature with required=\"false\" attribute value.");
  +  static const ManifestWarningCode CAMERA_PERMISSIONS_INCOMPATIBLE = const ManifestWarningCode(
  +      'CAMERA_PERMISSIONS_INCOMPATIBLE',
  +      "Camera permissions make app incompatible for Chrome OS, consider adding " +
  +          "optional features \"android.hardware.camera\" and \"android.hardware.camera.autofocus\".",
  +      correction: "Try adding `<uses-feature " +
  +          "android:name=\"android.hardware.camera\"  android:required=\"false\">` " +
  +          "`<uses-feature " +
  +          "android:name=\"android.hardware.camera.autofocus\"  android:required=\"false\">`.");
   
     /**
      * A code indicating that the activity is set to be non resizable.
  
positive.code:    * A code indicating that a specified feature is not supported on Chrome OS.
     */
    static const ManifestWarningCode UNSUPPORTED_CHROME_OS_FEATURE =
        const ManifestWarningCode(
            'UNSUPPORTED_CHROME_OS_FEATURE',
            "This feature is not supported on Chrome OS. Try changing " +
                "`android:required to \"false\"` for this feature.",
            correction: "Try changing to `android:required=\"false\"` for this " +
                "feature.");
  
  
negative.code:    * A code indicating that a specified hardware feature is not supported on Chrome OS.
     */
    static const ManifestWarningCode UNSUPPORTED_CHROME_OS_HARDWARE =
        const ManifestWarningCode('UNSUPPORTED_CHROME_OS_HARDWARE',
            "This feature is not supported on Chrome OS, consider making it optional.",
            correction:
                "Try adding `android:required=\"false\"` for this " + "feature.");
  
  