Add pepper_api watchlist, add self

WATCHLISTS

Index: WATCHLISTS
diff --git a/WATCHLISTS b/WATCHLISTS
index cc319ca80068cba36bf030851f22ce1678c05524..c967416a46bc91537c76b6861bf8b8f49e603dc3 100644
--- a/WATCHLISTS
+++ b/WATCHLISTS
@@ -170,6 +170,9 @@
     'file_system': {
       'filepath': 'file_system/.*',
     },
+    'pepper_api': {
+      'filepath': 'ppapi/c/.*',
+    },
   },
 
   'WATCHLISTS': {
@@ -229,5 +232,6 @@
                'nirnimesh@chromium.org', 'dyu@chromium.org'],
     'labs': ['thakis@chromium.org'],
     'file_system': ['kinuko@chromium.org'],
+    'pepper_api': ['piman+watch@chromium.org'],
   },
 }