Add watches for pastarmovj and grt in c/b/u/startup.

BUG=NONE
R=pastarmovj@chromium.org

Change-Id: I29b2b3d2b0ecce290f858043d29e8a82b1b6d3a9
Reviewed-on: https://chromium-review.googlesource.com/849996Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#526976}

WATCHLISTS

@@ -1369,6 +1369,9 @@
                   '|third_party/hunspell/'\
                   '|third_party/hunspell_dictionaries/',
     },
+    'startup': {
+      'filepath': 'chrome/browser/ui/startup/',
+    },
     'streams': {
       'filepath': 'content/browser/streams/',
     },
@@ -2238,6 +2241,8 @@
                    'rlp+watch@chromium.org',
                    'rouslan+spell@chromium.org',
                    'timvolodine@chromium.org'],
+    'startup': ['grt+watch@chromium.org',
+                'pastarmovj+watch@chromium.org'],
     'streams': ['zork+watch@chromium.org'],
     'styleguide': ['danakj+watch@chromium.org',
                    'jbroman+cpp@chromium.org',