PlzNavigate & CSP. Use the SourceLocation in violation reports.

content/browser/frame_host/form_submission_throttle.cc

Index: content/browser/frame_host/form_submission_throttle.cc
diff --git a/content/browser/frame_host/form_submission_throttle.cc b/content/browser/frame_host/form_submission_throttle.cc
index 8e3958f5c5e67aa4bdf14bf5bb791aa7468c6963..2b9c571ffef2135c4873da552c15be3bd95bab06 100644
--- a/content/browser/frame_host/form_submission_throttle.cc
+++ b/content/browser/frame_host/form_submission_throttle.cc
@@ -56,8 +56,10 @@ FormSubmissionThrottle::CheckContentSecurityPolicyFormAction(bool is_redirect) {
   RenderFrameHostImpl* render_frame =
       handle->frame_tree_node()->current_frame_host();
 
-  if (render_frame->IsAllowedByCsp(CSPDirective::FormAction, url, is_redirect))
+  if (render_frame->EnforceCsp(CSPDirective::FormAction, url, is_redirect,
+                               handle->source_location())) {
     return NavigationThrottle::PROCEED;
+  }
 
   return NavigationThrottle::CANCEL;
 }