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

components/password_manager/content/browser/content_password_manager_driver.h

Index: components/password_manager/content/browser/content_password_manager_driver.h
diff --git a/components/password_manager/content/browser/content_password_manager_driver.h b/components/password_manager/content/browser/content_password_manager_driver.h
index 9fd29046dae9a622235d113b2bb5e14895152f8a..698975f1b4850064a8442aaef408da5e3c7373fe 100644
--- a/components/password_manager/content/browser/content_password_manager_driver.h
+++ b/components/password_manager/content/browser/content_password_manager_driver.h
@@ -30,6 +30,9 @@ class Message;
 }
 
 namespace password_manager {
+namespace bad_message {
+enum class BadMessageReason;
+}
 
 // There is one ContentPasswordManagerDriver per RenderFrameHost.
 // The lifetime is managed by the ContentPasswordManagerDriverFactory.
@@ -82,6 +85,9 @@ class ContentPasswordManagerDriver : public PasswordManagerDriver {
   void OnFocusedPasswordFormFound(const autofill::PasswordForm& password_form);
 
  private:
+  bool CheckChildProcessSecurityPolicy(const GURL& url,
+                                       bad_message::BadMessageReason);
+
   content::RenderFrameHost* render_frame_host_;
   PasswordManagerClient* client_;
   PasswordGenerationManager password_generation_manager_;