Update some TODO comments regarding Chrome apps permissions.

For chromeosInfoPrivate and imageWriterPrivate, some apps remain active
beyond the original 2017 deprecation date. Update the TODO comments so
readers do not try to remove them.

BUG=329088,510270

Change-Id: I78547cca1d5b46f31217e49aa1cbbbc9866b5d74
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1591968Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Jun Mukai <mukai@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813378}

chrome/common/extensions/api/_permission_features.json

@@ -108,13 +108,13 @@
       "E703483CEF33DEC18B4B6DD84B5C776FB9182BDB",  // http://crbug.com/234235
       "307E96539209F95A1A8740C713E6998A73657D96",  // http://crbug.com/329690
       "A291B26E088FA6BA53FFD72F0916F06EBA7C585A",  // http://crbug.com/341258
-      // TODO (ntang) Remove the following hash by 12/31/2017.
+      // TODO(ntang): Remove this hash when the app is no longer active.
       "D7986543275120831B39EF28D1327552FC343960",  // http://crbug.com/329088
       "4F25792AF1AA7483936DE29C07806F203C7170A0",  // http://crbug.com/407693
       "BD8781D757D830FC2E85470A1B6E8A718B7EE0D9",  // http://crbug.com/407693
       "4AC2B6C63C6480D150DFDA13E4A5956EB1D0DDBB",  // http://crbug.com/407693
       "81986D4F846CEDDDB962643FA501D1780DD441BB",  // http://crbug.com/407693
-      // TODO (ntang) Remove the following 2 hashes by 12/31/2017.
+      // TODO(ntang): Remove these 2 hashes when the app is no longer active.
       "B620CF4203315F9F2E046EDED22C7571A935958D",  // http://crbug.com/510270
       "B206D8716769728278D2D300349C6CB7D7DE2EF9",  // http://crbug.com/510270
       "A3E3DE9E9F16B41D4A2FAD106BD6CA76B94A0C94",  // http://crbug.com/590259
@@ -697,11 +697,11 @@
     "channel": "stable",
     "extension_types": ["extension", "platform_app"],
     "whitelist": [
-      // TODO (ntang) Remove the following 2 hashes by 12/31/2017.
+      // TODO(ntang): Remove these 2 hashes when the app is no longer active.
       "A291B26E088FA6BA53FFD72F0916F06EBA7C585A", // http://crbug.com/329088
       "D7986543275120831B39EF28D1327552FC343960", // http://crbug.com/329088
       "BCC85C0D7F85897F2699974421EA402144C35C0C", // API Test
-      // TODO (ntang) Remove the following 2 hashes by 12/31/2017.
+      // TODO(ntang): Remove these 2 hashes when the app is no longer active.
       "B620CF4203315F9F2E046EDED22C7571A935958D", // http://crbug.com/510270
       "B206D8716769728278D2D300349C6CB7D7DE2EF9", // http://crbug.com/510270
       "2B6C6A4A5940017146F3E58B7F90116206E84685",  // http://crbug.com/642141