Change the password bubble on Mac so the columns are resized dynamically.

components/password_manager/core/common/password_manager_ui.h

Index: components/password_manager/core/common/password_manager_ui.h
diff --git a/components/password_manager/core/common/password_manager_ui.h b/components/password_manager/core/common/password_manager_ui.h
index 4dc2d8ce4f5e9df65d01260db376c07294850090..8f828cdfcd3f7de7051d7e658d8bd01e66b6f486 100644
--- a/components/password_manager/core/common/password_manager_ui.h
+++ b/components/password_manager/core/common/password_manager_ui.h
@@ -39,15 +39,6 @@ enum State {
   PENDING_PASSWORD_UPDATE_STATE,
 };
 
-// The position of a password item in a list of credentials.
-enum PasswordItemPosition {
-  // The password item is the first in the list.
-  FIRST_ITEM,
-
-  // The password item is not the first item in the list.
-  SUBSEQUENT_ITEM,
-};
-
 }  // namespace ui
 
 }  // namespace password_manager