Kill renderers for bad password forms in --site-per-process.

components/password_manager.gypi

Index: components/password_manager.gypi
diff --git a/components/password_manager.gypi b/components/password_manager.gypi
index 552d94dd561b76ba6cf6aa32603a8470daf77080..83fbf3acf75a669e1271cf070dc540917d8cc31a 100644
--- a/components/password_manager.gypi
+++ b/components/password_manager.gypi
@@ -258,6 +258,8 @@
           ],
           'sources': [
             # Note: sources list duplicated in GN build.
+            'password_manager/content/browser/bad_message.cc',
+            'password_manager/content/browser/bad_message.h',
             'password_manager/content/browser/content_password_manager_driver.cc',
             'password_manager/content/browser/content_password_manager_driver.h',
             'password_manager/content/browser/content_password_manager_driver_factory.cc',