Added WATCHLISTS definition filesapp for Files App related changes.

WATCHLISTS

Index: WATCHLISTS
diff --git a/WATCHLISTS b/WATCHLISTS
index 8e0631ebe38706f4a67d171d555c7b66475eab77..363f3475af5cd4f785773f4711450d1439b22b3c 100644
--- a/WATCHLISTS
+++ b/WATCHLISTS
@@ -431,6 +431,12 @@
     'filesapp': {
       'filepath': 'ui/file_manager'
     },
+    'filesapp_all': {

[fukino, 2016/08/30 05:49:16]

It looks a bit weird to have 'filesapp' and 'filesapp_all'. Combine them into
one 'filesapp', or having 'filesapp_ui' and 'filesapp' makes more sense to me.

[oka, 2016/08/30 06:08:50]

Done.

+      'filepath': 'chrome/browser/chromeos/drive|' \

[fukino, 2016/08/30 05:49:16]

filesapp_all looks missing some directories compared to
https://sites.google.com/a/google.com/chromeos-team-tok/files-app/how-big-is-...

[oka, 2016/08/30 06:08:50]

Done.

+                  'chrome/browser/chromeos/extensions/file_manager|'

[fukino, 2016/08/30 05:49:16]

'\' is missing at the end of line.
(testing watchlists.py should have detected it?)

[oka, 2016/08/30 06:08:50]

Done. I sorted the lines but forgot to run test after that.

+                  'chrome/browser/chromeos/file_manager|' \
+                  'ui/file_manager'
+    },
     'ftp': {
       'filepath': 'ftp',
     },
@@ -1734,6 +1740,7 @@
                 'tzik@chromium.org'],
     'filebrowse': ['rginda+watch@chromium.org'],
     'filesapp': ['mtomasz+watch@chromium.org'],
+    'filesapp_all': ['oka+watch@chromium.org'],
     'ftp': ['phajdan.jr@chromium.org'],
     'gcm': ['johnme+watch@chromium.org',
             'peter@chromium.org',