chore: bump chromium in DEPS to 78.0.3904.88 (electron#20873)

electron-bot · John Kleinschmidt · commit 25b3ee29cf9a · 2019-10-31T10:54:20.000-04:00
diff --git a/DEPS b/DEPS
@@ -11,7 +11,7 @@ gclient_gn_args = [
 
 vars = {
   'chromium_version':
-    '78.0.3904.86',
+    '78.0.3904.88',
   'node_version':
     'v12.8.1',
   'nan_version':
