Make ChromePasswordManagerClient::BindCredentialManager handle missing client gracefully

chrome/browser/password_manager/chrome_password_manager_client.cc

Index: chrome/browser/password_manager/chrome_password_manager_client.cc
diff --git a/chrome/browser/password_manager/chrome_password_manager_client.cc b/chrome/browser/password_manager/chrome_password_manager_client.cc
index 31f1893633e9844a030c376eb2034d0de243dc1f..437ae9f877711bc8c2521f9619f7ab9344dbbcf0 100644
--- a/chrome/browser/password_manager/chrome_password_manager_client.cc
+++ b/chrome/browser/password_manager/chrome_password_manager_client.cc
@@ -636,6 +636,12 @@ void ChromePasswordManagerClient::BindCredentialManager(
 
   ChromePasswordManagerClient* instance =
       ChromePasswordManagerClient::FromWebContents(web_contents);
-  DCHECK(instance);
+
+  // Try to bind to the driver, but if driver is not available for this render
+  // frame host, the request will be just dropped. This will cause the message
+  // pipe to be closed, which will raise a connection error on the peer side.
+  if (!instance)
+    return;
+
   instance->credential_manager_impl_.BindRequest(std::move(request));
 }